ci: cancel superseded workflow runs on PR pushes

PR-triggered workflows without a concurrency group keep running (and
holding runner slots) after a force-push or quick follow-up commit
supersedes them. Add the same group/cancel-in-progress block the go
workflow already uses, keyed on head_ref, to the remaining PR workflows.

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

.github/workflows/container_release_foundationdb.yml

@@ -11,6 +11,10 @@ on:
         required: true
         default: ''
 
+concurrency:
+  group: ${{ github.head_ref }}/container_release_foundationdb
+  cancel-in-progress: true
+
 permissions:
   contents: read