Merge pull request #189 from kjd/fix-sigstore-action

Upgrade gh-action-sigstore-python to v3.0.0

Author: kjd

.github/workflows/deploy.yml

@@ -66,7 +66,7 @@ jobs:
         name: python-package-distributions
         path: dist/
     - name: Sign with Sigstore
-      uses: sigstore/gh-action-sigstore-python@1f6a500bbfdd9a2a339cf033e5421951fbc1cd2 # v2.1.1
+      uses: sigstore/gh-action-sigstore-python@f514d46b907ebcd5bedc05145c03b69c1edd8b46 # v3.0.0
       with:
         inputs: >-
           ./dist/*.tar.gz