pin to v7

Author: zliang-akamai

.github/workflows/release.yml

@@ -67,7 +67,7 @@ jobs:
           result-encoding: string
 
       - name: Build and push to DockerHub
-        uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # pin@v7.1.0
+        uses: docker/build-push-action@v7
         with:
           context: .
           file: Dockerfile