Merge pull request #1654 from stackhpc/update-dependencies-stackhpc-only

CI: Avoid dependency updates in forks

Author: Alex-Welsh

.github/workflows/update-dependencies.yml

@@ -14,6 +14,7 @@ on:
 
 jobs:
   propose_github_release_updates:
+    if: github.repository == 'stackhpc/stackhpc-kayobe-config'
     runs-on: ubuntu-22.04
     strategy:
       matrix: