add release workflow

.github/workflows/release.yml

@@ -0,0 +1,37 @@
+---
+name: Release Charts
+
+on:
+  # push:
+  #   branches:
+  #     - main
+  workflow_dispatch:
+
+jobs:
+  release:
+    # depending on default permission settings for your org (contents being read-only or read-write for workloads), you will have to add permissions
+    # see: https://docs.github.com/en/actions/security-guides/automatic-token-authentication#modifying-the-permissions-for-the-github_token
+    permissions:
+      contents: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git
+        run: |
+          git config --global user.email github-actions[bot]@users.noreply.github.com
+          git config --global user.name github-actions[bot]
+
+      - name: Install Helm
+        uses: azure/setup-helm@v3
+
+      - name: Run chart-releaser
+        uses: helm/[email protected]    # https://github.com/helm/chart-releaser-action
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+        with:
+          charts_dir: ./charts
+          pages_branch: gh-pages