Add a dummy job that always passes

#2593

Author: probonopd

.github/workflows/test.yml

@@ -14,6 +14,13 @@ env:
   GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
 jobs:
+  dummy:
+  # https://github.com/AppImage/appimage.github.io/issues/2593
+    runs-on: ubuntu-latest
+    steps:
+    - name: Pass dummy job
+      run: |
+        echo "passing"
   build:
     runs-on: ubuntu-18.04
     timeout-minutes: 5