Correct name of secret in release job

Author: David Robertson

.github/workflows/release.yml

@@ -23,4 +23,4 @@ jobs:
         run: "python -m twine upload dist/*"
         env:
           TWINE_USERNAME: "__token__"
-          TWINE_PASSWORD: "${{ secrets.PYPI_API_TOKEN }}"
+          TWINE_PASSWORD: "${{ secrets.PYPI_ACCESS_TOKEN }}"