Fix wheel upload, take 2

Author: martinRenou

.github/workflows/release.yml

@@ -27,7 +27,7 @@ jobs:
         TWINE_PASSWORD: ${{ secrets.PYPI_API_TOKEN }}
       run: |
         python -m build
-        twine upload dist/*.whl
+        twine upload dist/ipympl-*
     - name: Publish the NPM package
       run: |
         cd js