Fix Helm validation in containerized Actions runner

.gitea/workflows/container.yml

@@ -20,19 +20,16 @@ jobs:
       - name: Check out source
         uses: actions/checkout@v4
 
+      - name: Set up Helm
+        uses: azure/setup-helm@v4
+        with:
+          version: v4.2.2
+
       - name: Validate Helm chart
         run: |
           set -euo pipefail
-          docker run --rm \
+          helm lint helm/php-homepage
-            --volume "${PWD}:/source" \
+          helm template ci-test helm/php-homepage > /dev/null
-            --workdir /source \
-            alpine/helm:4.2.2@sha256:ee6fe3e96d9f8ea8dd1af9ecd7bbb3e233616a25f145392376f020fd2a51eb33 \
-            lint helm/php-homepage
-          docker run --rm \
-            --volume "${PWD}:/source" \
-            --workdir /source \
-            alpine/helm:4.2.2@sha256:ee6fe3e96d9f8ea8dd1af9ecd7bbb3e233616a25f145392376f020fd2a51eb33 \
-            template ci-test helm/php-homepage > /dev/null
 
       - name: Log in to Quay
         uses: docker/login-action@v3
@@ -133,11 +130,7 @@ jobs:
           test -n "${PACKAGE_USERNAME}"
           test -n "${PACKAGE_TOKEN}"
           install -d .chart-packages
-          docker run --rm \
+          helm package helm/php-homepage \
-            --volume "${PWD}:/source" \
-            --workdir /source \
-            alpine/helm:4.2.2@sha256:ee6fe3e96d9f8ea8dd1af9ecd7bbb3e233616a25f145392376f020fd2a51eb33 \
-            package helm/php-homepage \
             --destination .chart-packages \
             --version "${CHART_VERSION}" \
             --app-version "${BUILD_TAG}"