Update sync-upstream-repo.yml

Make sync-template-repo dependant on sync-labels.

Otherwise- both tries to update labels at the same time, which causes problems.

.github/workflows/sync-upstream-repo.yml

@@ -38,6 +38,7 @@ jobs:
     # This job will sync issue templates, and other files from an upstream repo.
     name: Sync Template Repo 
     runs-on: ubuntu-latest
+    needs: sync-labels
     # https://docs.github.com/en/actions/using-jobs/assigning-permissions-to-jobs
     permissions:
       contents: write