fetch before checkout

.github/workflows/CI_pypi_release.yml

@@ -59,6 +59,7 @@ jobs:
         run: |
           git config --global user.name "github-actions[bot]"
           git config --global user.email "github-actions[bot]@users.noreply.github.com"
+          git fetch
           git checkout main
           git add ${{ steps.pathfinder.outputs.project_path }}
           git commit -m"Update the changelog"