Bump to latest version of sigstore github action to avoid package incompatibilities

Author: emielver

.github/workflows/publish.yml

@@ -54,7 +54,7 @@ jobs:
       - name: Publish distribution 📦 to PyPI
         uses: pypa/gh-action-pypi-publish@release/v1
       - name: Sign the dists with Sigstore
-        uses: sigstore/gh-action-sigstore-python@v2.1.1
+        uses: sigstore/gh-action-sigstore-python@v3.0.0
         with:
           inputs: >-
             ./dist/*.tar.gz