build: Fix reference to pypi-publish (#19)

#18 changed the pypi action in the release build, but it was not valid, and made the build fail.

Author: andersem

.github/workflows/publish.yml

@@ -19,11 +19,11 @@ jobs:
       - name: Build package
         run: python -m build
       - name: Publish to Test PyPI
-        uses: pypa/gh-action-pypi-publish@v1
+        uses: pypa/gh-action-pypi-publish@release/v1
         with:
           password: ${{ secrets.TEST_PYPI_API_TOKEN }}
-          repository_url: https://test.pypi.org/legacy/
+          repository-url: https://test.pypi.org/legacy/
       - name: Publish to PyPI
-        uses: pypa/gh-action-pypi-publish@v1
+        uses: pypa/gh-action-pypi-publish@release/v1
         with:
           password: ${{ secrets.PYPI_API_TOKEN }}