Fix release workflow

Author: gsmet

.github/workflows/release.yml

@@ -64,8 +64,8 @@ jobs:
           git commit -am "Update stable version for documentation"
           # Move the tag after inclusion of documentation adjustments
           git tag -f ${{steps.metadata.outputs.current-version}}
-          # Go back to main
-          git checkout main
+          # Go back to base branch
+          git checkout ${{github.base_ref}}
 
       - name: Push changes to ${{github.base_ref}}
         uses: ad-m/[email protected]