Merge pull request #7 from hjmcnew/dependabot/github_actions/sigstore/cosign-installer-3.8.1

Bump sigstore/cosign-installer from 3.5.0 to 3.8.1

Author: Herb McNew

.github/workflows/docker-publish.yml

@@ -41,7 +41,7 @@ jobs:
       # https://github.com/sigstore/cosign-installer
       - name: Install cosign
         if: github.event_name != 'pull_request'
-        uses: sigstore/cosign-installer@59acb6260d9c0ba8f4a2f9d9b48431a222b68e20 #v3.5.0
+        uses: sigstore/cosign-installer@d7d6bc7722e3daa8354c50bcb52f4837da5e9b6a #v3.8.1
         with:
           cosign-release: 'v2.2.4'