fix(ci): need a metadata github actions job

.github/workflows/sync.yml

@@ -7,7 +7,24 @@ on: # yamllint disable-line rule:truthy
     - main
 
 jobs:
+  metadata:
+    runs-on: ubuntu-latest
+
+    outputs:
+      repository: ${{ steps.metadata.outputs.repository }}
+      dockerfile: ${{ steps.dockerfile.outputs.exists }}
+
+    steps:
+    - uses: actions/[email protected]
+
+    - id: metadata
+      uses: ahmadnassri/action-metadata@v1
+
   sync:
+
+    needs:
+    - metadata
+
     # only runs on main branch and only for the template
     if: ${{ github.ref == 'refs/heads/main' && fromJSON(needs.metadata.outputs.repository).is_template }}