Update docker_publish.yml

Author: threeplanetssoftware

.github/workflows/docker_publish.yml

@@ -38,7 +38,7 @@ jobs:
       # https://github.com/sigstore/cosign-installer
       - name: Install cosign
         if: github.event_name != 'pull_request'
-        uses: sigstore/cosign-installer@4959ce089c160fddf62f7b42464195ba1a56d382 # v3.6.0
+        uses: sigstore/[email protected]
         with:
           cosign-release: 'v2.4.0'