chore(deps): bump net-imap from 0.4.24 to 0.6.4.1 (#14688)

Bumps [net-imap](https://github.com/ruby/net-imap) from 0.4.24 to
0.6.4.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/ruby/net-imap/releases">net-imap's
releases</a>.</em></p>
<blockquote>
<h2>v0.5.15</h2>
<h2>What's Changed</h2>
<h3>🔒 Security</h3>
<p>This release fixes several more security vulnerabilities which are
related to the fixes in <code>v0.5.14</code>. Please see the linked
security advisories for more information.</p>
<ul>
<li><em>(moderate)</em> Command Injection via non-synchronizing literal
in &quot;raw&quot; argument (CVE-2026-47240, GHSA-8p34-64r3-mwg8)
This vulnerability depends how the server interprets non-synchronizing
literals.
The connection is <em>not</em> vulnerable if the server supports
non-synchronizing literals.
<ul>
<li>🥅 Validate non-synchronizing literals support by <a
href="https://github.com/nevans"><code>@​nevans</code></a> in <a
href="https://redirect.github.com/ruby/net-imap/pull/703">ruby/net-imap#703</a>
(backports <a
href="https://redirect.github.com/ruby/net-imap/pull/701">ruby/net-imap#701</a>)</li>
</ul>
</li>
<li><em>(moderate)</em> Command Injection via unvalidated ID and ENABLE
arguments (CVE-2026-47242, GHSA-46q3-7gv7-qmgg)
<ul>
<li>🥅 Validate <code>ID</code> values contain only valid bytes by <a
href="https://github.com/nevans"><code>@​nevans</code></a> in <a
href="https://redirect.github.com/ruby/net-imap/pull/703">ruby/net-imap#703</a>
(backports <a
href="https://redirect.github.com/ruby/net-imap/pull/698">ruby/net-imap#698</a>)</li>
<li>🥅 Validate <code>#enable</code> arguments are all atoms by <a
href="https://github.com/nevans"><code>@​nevans</code></a> in <a
href="https://redirect.github.com/ruby/net-imap/pull/703">ruby/net-imap#703</a>
(backport <a
href="https://redirect.github.com/ruby/net-imap/pull/699">ruby/net-imap#699</a>)
<strong>NOTE:</strong> <code>#enable</code> should
<strong><em>never</em></strong> be called with untrusted input.</li>
</ul>
</li>
<li><em>(low)</em> Denial of Service via incomplete &quot;raw&quot;
argument validation (CVE-2026-47241, GHSA-c4fp-cxrr-mj66)
This results in the affected command hanging until the connection is
closed. If another thread attempts to send a concurrent pipelined
command, the first thread will return with a syntax error and the second
thread will hang until the connection closes.
<ul>
<li><em>Reported by <a
href="https://github.com/fg0x0"><code>@​fg0x0</code></a></em></li>
<li>🐛 Prevent trailing <code>{0}</code> in RawData validation by <a
href="https://github.com/nevans"><code>@​nevans</code></a> in <a
href="https://redirect.github.com/ruby/net-imap/pull/703">ruby/net-imap#703</a>
(backports <a
href="https://redirect.github.com/ruby/net-imap/pull/700">ruby/net-imap#700</a>)</li>
</ul>
</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>🥅 Validate that Atom and Flag are not empty by <a
href="https://github.com/nevans"><code>@​nevans</code></a> in <a
href="https://redirect.github.com/ruby/net-imap/pull/685">ruby/net-imap#685</a>
(backports <a
href="https://redirect.github.com/ruby/net-imap/pull/684">ruby/net-imap#684</a>)</li>
<li>🧵 Fix deadlock in <code>#disconnect</code> by <a
href="https://github.com/nevans"><code>@​nevans</code></a> in <a
href="https://redirect.github.com/ruby/net-imap/pull/697">ruby/net-imap#697</a>
(backports <a
href="https://redirect.github.com/ruby/net-imap/pull/686">ruby/net-imap#686</a>)</li>
</ul>
<h3>Documentation</h3>
<ul>
<li>⚠️ Boost visibility of raw data argument documentation warnings by
<a href="https://github.com/nevans"><code>@​nevans</code></a> in <a
href="https://redirect.github.com/ruby/net-imap/pull/696">ruby/net-imap#696</a>
(backports <a
href="https://redirect.github.com/ruby/net-imap/pull/677">ruby/net-imap#677</a>)</li>
</ul>
<h3>Other Changes</h3>
<ul>
<li>🏷️ Allow 64-bit Integer arguments in <a
href="https://redirect.github.com/ruby/net-imap/pull/696">ruby/net-imap#696</a>
(backports <a
href="https://redirect.github.com/ruby/net-imap/pull/675">ruby/net-imap#675</a>)</li>
<li>🥅 Ensure send_number_data input is an Integer in <a
href="https://redirect.github.com/ruby/net-imap/pull/696">ruby/net-imap#696</a>
(backports <a
href="https://redirect.github.com/ruby/net-imap/pull/676">ruby/net-imap#676</a>)</li>
<li>♻️ Improve <code>RawData.new</code>, Add <code>RawData.split</code>
by <a href="https://github.com/nevans"><code>@​nevans</code></a> in <a
href="https://redirect.github.com/ruby/net-imap/pull/696">ruby/net-imap#696</a>
(backports <a
href="https://redirect.github.com/ruby/net-imap/pull/679">ruby/net-imap#679</a>)</li>
<li>🥅 Validate response literal byte size format by <a
href="https://github.com/nevans"><code>@​nevans</code></a> in <a
href="https://redirect.github.com/ruby/net-imap/pull/696">ruby/net-imap#696</a>
(backports <a
href="https://redirect.github.com/ruby/net-imap/pull/681">ruby/net-imap#681</a>)</li>
</ul>
<h3>Miscellaneous</h3>
<ul>
<li>✅ Improvements to tests' FakeServer in <a
href="https://redirect.github.com/ruby/net-imap/pull/696">ruby/net-imap#696</a>
(backports <a
href="https://redirect.github.com/ruby/net-imap/pull/678">ruby/net-imap#678</a>)</li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/ruby/net-imap/compare/v0.5.14...v0.5.15">https://github.com/ruby/net-imap/compare/v0.5.14...v0.5.15</a></p>
<h2>v0.5.14</h2>
<h2>What's Changed</h2>
<h3>🔒 Security</h3>
<p>This release contains fixes for <strong>multiple
vulnerabilities</strong> concerning <em><strong><code>STARTTLS</code>
stripping</strong></em>, argument validation, and denial of service
attacks.</p>
<blockquote>
<p>[!WARNING]
<a
href="https://redirect.github.com/ruby/net-imap/pull/665">ruby/net-imap#665</a>
fixes a <code>STARTTLS</code> stripping vulnerability
(GHSA-vcgp-9326-pqcp).
Without this fix, a man-in-the-middle attacker can cause
<code>Net::IMAP#starttls</code> to return &quot;successfully&quot;,
<strong><em>without starting TLS</em></strong>.</p>
</blockquote>
<blockquote>
<p>[!IMPORTANT]
Argument validation is significantly improved. Several command injection
vulnerabilities have been fixed:
<a
href="https://redirect.github.com/ruby/net-imap/pull/662">ruby/net-imap#662</a>
fixes CRLF/command/argument injection via Symbol arguments
(GHSA-75xq-5h9v-w6px).
<a
href="https://redirect.github.com/ruby/net-imap/pull/662">ruby/net-imap#662</a>
fixes CRLF/command/argument injection via the <code>attr</code> argument
to <code>#store</code>/<code>#uid_store</code> (GHSA-hm49-wcqc-g2xg)</p>
</blockquote>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/ruby/net-imap/commit/ce20fc8e9974ed87d0848dc411eef490623cdeb9"><code>ce20fc8</code></a>
🔖 Bump version to 0.5.15</li>
<li><a
href="https://github.com/ruby/net-imap/commit/0b7b83c19312dd3f44cb72be2e7681289324d9db"><code>0b7b83c</code></a>
🔀 Merge pull request <a
href="https://redirect.github.com/ruby/net-imap/issues/703">#703</a>
from ruby/backport/v0.5/security-patches</li>
<li><a
href="https://github.com/ruby/net-imap/commit/f22fd6cee01140b53cdb7fc8d42a352a734f4509"><code>f22fd6c</code></a>
🍒 pick 0ea9eba3 (<a
href="https://redirect.github.com/ruby/net-imap/issues/701">#701</a>): ✅
Fix flaky tests for MacOS, TruffleRuby</li>
<li><a
href="https://github.com/ruby/net-imap/commit/12460740451d064cef84f59dd8c91baba0388ae1"><code>1246074</code></a>
🍒 pick ae9f83b5 (<a
href="https://redirect.github.com/ruby/net-imap/issues/701">#701</a>):
♻️ Extract str.bytesize lvar in send_literal</li>
<li><a
href="https://github.com/ruby/net-imap/commit/a2f61af6b7a7e6f0e4f27691531de6e4861318cd"><code>a2f61af</code></a>
🍒 pick 62a0da6d (<a
href="https://redirect.github.com/ruby/net-imap/issues/701">#701</a>): 🥅
Validate non-synchronizing literals support</li>
<li><a
href="https://github.com/ruby/net-imap/commit/e33348ccdc639d0d4414f72e4ba7024bdb24bf29"><code>e33348c</code></a>
🍒 pick d6ddd294 (<a
href="https://redirect.github.com/ruby/net-imap/issues/700">#700</a>): 🐛
Prevent trailing <code>{0}</code> in RawData validation</li>
<li><a
href="https://github.com/ruby/net-imap/commit/4f81b69044297de02ada859fffba6ad9923a43a5"><code>4f81b69</code></a>
🍒 pick 1f97168b (<a
href="https://redirect.github.com/ruby/net-imap/issues/699">#699</a>): 🥅
Validate <code>#enable</code> arguments are all atoms</li>
<li><a
href="https://github.com/ruby/net-imap/commit/69da4a490dd148526fb287a5c82056bfd20c6f95"><code>69da4a4</code></a>
🍒 pick 8d9397ab (<a
href="https://redirect.github.com/ruby/net-imap/issues/698">#698</a>): 🥅
Validate QuotedString contains only valid bytes</li>
<li><a
href="https://github.com/ruby/net-imap/commit/7aab580ad35f2cad1404a58bf0ff015567f2593c"><code>7aab580</code></a>
🍒 pick e3c50fad (<a
href="https://redirect.github.com/ruby/net-imap/issues/698">#698</a>):
♻️ Refactor RawText, add improve test coverage</li>
<li><a
href="https://github.com/ruby/net-imap/commit/fac1733d45ec57da3675c4d266c771c73c7265bb"><code>fac1733</code></a>
🍒 pick aab64f92 (<a
href="https://redirect.github.com/ruby/net-imap/issues/686">#686</a>): 🧵
Fix deadlock in <code>#disconnect</code></li>
<li>Additional commits viewable in <a
href="https://github.com/ruby/net-imap/compare/v0.4.24...v0.5.15">compare
view</a></li>
</ul>
</details>
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Gemfile.lock

@@ -582,7 +582,7 @@ GEM
       uri (>= 0.11.1)
     net-http-persistent (4.0.2)
       connection_pool (~> 2.2)
-    net-imap (0.4.24)
+    net-imap (0.6.4.1)
       date
       net-protocol
     net-pop (0.1.2)