Upgrade @vuelidate to 2.x

app/javascript/entrypoints/application.js

@@ -9,7 +9,6 @@ import VueFormulate from '@braid/vue-formulate';
 import WootSwitch from 'components/ui/Switch.vue';
 import WootWizard from 'components/ui/Wizard.vue';
 import { sync } from 'vuex-router-sync';
-import Vuelidate from 'vuelidate';
 import VTooltip from 'v-tooltip';
 import WootUiKit from '../dashboard/components';
 import App from '../dashboard/App.vue';
@@ -61,7 +60,6 @@ Vue.use(VueDOMPurifyHTML, domPurifyConfig);
 Vue.use(VueRouter);
 Vue.use(VueI18n);
 Vue.use(WootUiKit);
-Vue.use(Vuelidate);
 Vue.use(VueFormulate, {
   rules: {
     JSON: ({ value }) => isJSONValid(value),