Avoiding use of alpine/helm without node

.gitea/workflows/publish-helm.yaml

@@ -2,19 +2,24 @@ name: Helm Publish
 
 on:
   push:
-    branches:
+    tags:
-      - main
+      - "v*"
-  workflow_dispatch:
 
 jobs:
   publish:
-    runs-on: ubuntu-latest
+    runs-on: docker # or whatever your Gitea runner labels are
-    container: alpine/helm:latest # any image with helm is fine
 
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Install Helm
+        run: |
+          set -euo pipefail
+          curl -sSL https://get.helm.sh/helm-v3.15.0-linux-amd64.tar.gz -o /tmp/helm.tgz
+          tar xzf /tmp/helm.tgz -C /tmp
+          install /tmp/linux-amd64/helm /usr/local/bin/helm
+
       - name: Install helm cm-push plugin
         run: |
           set -euo pipefail
@@ -24,9 +29,7 @@ jobs:
         run: |
           set -euo pipefail
           TAG="$(git describe --tags --exact-match)"
-          # TAG is like v0.1.3 -> VERSION=0.1.3
           VERSION="${TAG#v}"
-          echo "TAG=${TAG}"
           echo "VERSION=${VERSION}" >> "$GITHUB_ENV"
 
       - name: Verify Chart.yaml version matches tag