FIX release tag name (do not use branch name) (#217)

Author: guparan

.github/workflows/ci.yml

@@ -226,7 +226,8 @@ jobs:
       - name: Upload release
         uses: softprops/action-gh-release@v1
         with:
-          tag_name: ${{ github.ref_name }}
+          name: ${{ github.ref_name }}
+          tag_name: release-${{ github.ref_name }}
           fail_on_unmatched_files: true
           files: |
             artifacts/SofaPython3_*_Linux.zip