Add all-done job

Author: kwwette

.github/workflows/test.yml

@@ -69,3 +69,13 @@ jobs:
       - name: Clean
         run: |
           ppqs clean
+
+  all-done:
+    runs-on: ubuntu-latest
+
+    needs: test
+
+    steps:
+      - name: All done
+        run: |
+          echo All done