one time manual run

.github/workflows/helm_manual_release.yml

@@ -0,0 +1,25 @@
+name: "helm: manual release"
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pages: write
+
+jobs:
+  helm-release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+
+      - name: Publish Helm charts
+        uses: stefanprodan/helm-gh-pages@v1.7.0
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          charts_dir: k8s/charts
+          target_dir: helm
+          branch: gh-pages
+          helm_version: "3.18.4"