feat: remove usage of .sync and define explicitly emits (#10209)

References

- https://v3-migration.vuejs.org/breaking-changes/v-model
-
https://v3-migration.vuejs.org/breaking-changes/v-on-native-modifier-removed.html

app/javascript/dashboard/components/widgets/AutomationActionTeamMessageInput.vue

@@ -3,6 +3,7 @@ export default {
   // The value types are dynamic, hence prop validation removed to work with our action schema
   // eslint-disable-next-line vue/require-prop-types
   props: ['teams', 'value'],
+  emits: ['input'],
   data() {
     return {
       selectedTeams: [],