index artifacts with job-index

This is the advice in https://github.com/pypa/cibuildwheel
Hopefully it will prevent our CI failing with

Error: Failed to CreateArtifact: Received non-retryable error: Failed
request: (409) Conflict: an artifact with this name already exists on
the workflow run

Author: dimpase

.github/workflows/dist.yml

@@ -44,7 +44,7 @@ jobs:
         uses: pypa/cibuildwheel@v3.3
       - uses: actions/upload-artifact@v5
         with:
-          name: release-wheels-${{ matrix.os }}
+          name: release-wheels-${{ matrix.os }}-${{ strategy.job-index }}
           path: wheelhouse/*.whl
 
   pypi-publish: