ci: run cypress on pr

.github/workflows/cypress.yml

@@ -5,6 +5,8 @@ on:
       - main
       - "3.*"
       - "*cypress*"
+  pull_request:
+    types: [opened, synchronize, reopened]
 
 jobs:
   cypress:
@@ -40,6 +42,10 @@ jobs:
           export API_KEY=`sudo maas apikey --username=admin`
           maas login admin http://localhost:5240/MAAS $API_KEY
           maas admin users create username=user password=test email=fake-user@example.org is_superuser=0
+      - name: Wait for MAAS boot resources
+        if:  startsWith(matrix.groups, 'with-users')
+        shell: bash
+        run: while [ $(maas admin boot-resources is-importing | cat) == "true" ]; do sleep 10; done; echo "syncing finished"
       - name: Run Cypress tests
         uses: cypress-io/github-action@v4
         with: