release(nodemapper) - fix gha workflow syntax

.github/workflows/publish.yaml

@@ -11,7 +11,7 @@ jobs:
   publish_images:
     runs-on: ubuntu-latest
     name: Publish selected Docker image to Dockerhub
-    if: contains(github.event.head_commit.message, 'release(.*)')
+    if: contains(github.event.head_commit.message, 'release(.*')
     steps:
       - name: Authenticate to Dockerhub
         uses: docker/login-action@v3