Cosign version bump

Author: tux2000

.github/workflows/docker-publish.yml

@@ -46,7 +46,7 @@ jobs:
         if: github.event_name != 'pull_request'
         uses: sigstore/[email protected]
         with:
-          cosign-release: 'v1.4.0'
+          cosign-release: 'v2.2.4'
 
 
       # Workaround: https://github.com/docker/build-push-action/issues/461