ci(cypress): add summary job

Signed-off-by: Luka Trovic <luka@nextcloud.com>

.github/workflows/cypress-e2e.yml

@@ -20,10 +20,12 @@ jobs:
       fail-fast: false
       matrix:
         node-version: [20.x]
-        # containers: [1, 2, 3]
+        containers: [1, 2, 3]
         php-versions: [ '8.2' ]
         server-versions: [ 'master' ]
 
+    name: runner ${{ matrix.containers }}
+
     env:
       extensions: mbstring, iconv, fileinfo, intl, sqlite, pdo_sqlite, zip, gd, apcu
       key: cache-v1
@@ -135,6 +137,8 @@ jobs:
         env:
           CYPRESS_RECORD_KEY: ${{ secrets.CYPRESS_RECORD_KEY }}
           npm_package_name: ${{ env.APP_NAME }}
+          SPLIT: ${{ strategy.job-total }}
+          SPLIT_INDEX: ${{ strategy.job-index }}
 
       - name: Upload test failure screenshots
         uses: actions/upload-artifact@v4
@@ -151,3 +155,15 @@ jobs:
           name: Upload nextcloud log
           path: data/nextcloud.log
           retention-days: 5
+
+  summary:
+      runs-on: ubuntu-latest-low
+      needs: [ cypress ]
+
+      if: always()
+
+      name: cypress-summary
+
+      steps:
+        - name: Summary status
+          run: if ${{ needs.cypress.result != 'success' && needs.cypress.result != 'skipped' }}; then exit 1; fi