Use twine for release publishing

Author: abhishekgahlot2

.github/workflows/deepgym-ci.yml

@@ -69,12 +69,11 @@ jobs:
 
       - name: Build package
         run: |
-          pip install hatch
-          hatch build
+          python -m pip install build twine
+          python -m build
 
       - name: Publish to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
-        with:
-          packages-dir: deepgym/dist/
-          user: __token__
-          password: ${{ secrets.PYPI_API_TOKEN }}
+        env:
+          TWINE_USERNAME: __token__
+          TWINE_PASSWORD: ${{ secrets.PYPI_API_TOKEN }}
+        run: python -m twine upload --non-interactive --skip-existing dist/*