Hopefully fix github action so it deploys on release

Author: ksiegall

.github/workflows/sphinx.yml

@@ -16,7 +16,6 @@ jobs:
           sphinx-build docs _build
       - name: Deploy
         uses: peaceiris/actions-gh-pages@v3
-        if: ${{ github.ref == 'refs/heads/main' }}
         with:
           publish_branch: gh-pages
           github_token: ${{ secrets.GITHUB_TOKEN }}