Update pypi action to released (#66)

Author: GarethCabournDavies

.github/workflows/distribution.yml

@@ -56,13 +56,13 @@ jobs:
         mv artifact/* dist/
     - name: Publish distribution 📦 to Test PyPI
       if: github.event_name == 'push' && github.ref == 'refs/heads/master'
-      uses: pypa/gh-action-pypi-publish@master
+      uses: pypa/gh-action-pypi-publish@release/v1
       with:
         password: ${{ secrets.test_pypi_password }}
         repository_url: https://test.pypi.org/legacy/
         skip_existing: true
     - name: Publish distribution 📦 to PyPI
       if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
-      uses: pypa/gh-action-pypi-publish@master
+      uses: pypa/gh-action-pypi-publish@release/v1
       with:
         password: ${{ secrets.pypi_password }}