Merge pull request #1358 from marquiz/devel/github-release-workflow-concurrency

github: prevent parallel runs of gh-pages update

Author: k8s-ci-robot

.github/workflows/gh-pages.yml

@@ -8,6 +8,10 @@ on:
       - v[0-9]+.[0-9]+.[0-9]+
   release:
     types: [published]
+
+concurrency:
+  group: ${{ github.workflow }}
+
 jobs:
   build:
     name: Update gh-pages