ci(e2e): Potentially fix e2e tests workflow #2

Author: Manuel

.github/workflows/test-action.yaml

@@ -43,6 +43,7 @@ jobs:
         run: mvn clean verify
 
   e2e-tests:
+    needs: [frontend-tests, backend-tests]
     uses: ./.github/workflows/reusable__e2e-testing.yml
     with:
-      COMMIT_HASH: ${{ github.ref}}
+      COMMIT_HASH: ${{ github.ref }}