Potential fix for code scanning alert no. 8: Workflow does not contain permissions

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: casenave

.github/workflows/publish-pypi.yml

@@ -57,6 +57,8 @@ jobs:
     name: Build wheels for multiple Python versions
     needs: test
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
 
     steps:
       - uses: actions/checkout@v4