chore: Upgrade Node.js to v20 (#7759)

Co-authored-by: Vishnu Narayanan <vishnu@chatwoot.com>
Co-authored-by: Pranav Raj S <pranav@chatwoot.com>

.github/workflows/run_foss_spec.yml

@@ -52,7 +52,8 @@ jobs:
 
     - uses: actions/setup-node@v3
       with:
-        node-version: 16
+        node-version: 20
+        cache: yarn
 
     - name: yarn
       run: yarn install
@@ -75,6 +76,8 @@ jobs:
     - name: Run backend tests
       run: |
         bundle exec rspec --profile=10 --format documentation
+      env: 
+        NODE_OPTIONS: --openssl-legacy-provider
 
     - name: Upload rails log folder
       uses: actions/upload-artifact@v3