GitHub Actions CI template: do not skip intermediate builds on the `m…

…ain`, `master`, or `release-*` branches

templates/github/workflows/CI.yml

@@ -9,9 +9,9 @@ on:
   pull_request:
   workflow_dispatch:
 concurrency:
-  # Skip intermediate builds: always.
-  # Cancel intermediate builds: only if it is a pull request build.
-  group: ${{ github.workflow }}-${{ github.ref }}
+  # Skip intermediate builds: all builds except for builds on the `main`, `master`, or `release-*` branches
+  # Cancel intermediate builds: only pull request builds
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/main' || github.ref != 'refs/heads/master' || startsWith(github.ref, 'refs/heads/release-') || github.run_number }}
   cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
 jobs:
   test: