ci: add concurrency to cancel stale runs; make macos-intel non-blocking for publish due to long GitHub Intel macOS queues (8h+). Other wheels will publish promptly.

Author: qectorlab

.github/workflows/CI.yml

@@ -19,6 +19,10 @@ on:
 permissions:
   contents: read
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 env:
   # Build without OpenCL (SDK not on runners). CUDA is runtime-loaded via
   # libloading so no CUDA toolkit is needed at build time.
@@ -225,7 +229,9 @@ jobs:
       startsWith(github.ref, 'refs/tags/v') &&
       github.repository == 'GuillaumeLessard/qector-decoder' &&
       github.event_name != 'pull_request'
-    needs: [linux-x86_64, windows-x64, macos-arm, macos-intel]
+    needs: [linux-x86_64, windows-x64, macos-arm]
+    # Note: macos-intel (x86_64 on macos-13) is built but not required for publish
+    # due to long GitHub runner queues for Intel macOS. Artifacts can be attached manually if needed.
     environment: pypi
     permissions:
       id-token: write