ci: add helm chart validation to automation

This change adds the Helm chart test(s) to GitHub Action CI.

.github/workflows/pre-merge.yml

@@ -51,6 +51,25 @@ jobs:
     - uses: pre-commit/[email protected]
       timeout-minutes: 3
 
+  helm-chart-verification:
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/triton-inference-server/triton_distributed/helm-tester:0.1.1
+      options: --tty
+      volumes:
+      - ${{ github.workspace }}:/workspace
+    permissions:
+      contents: read
+      packages: read
+    steps:
+    - uses: actions/checkout@v4
+    # Allowlist both variants of the mounted source directory.
+    - run: git config --global --add safe.directory /__w/triton_distributed/triton_distributed
+    - run: git config --global --add safe.directory /workspace
+    - run: pwsh -c ./deploy/Kubernetes/worker/tests/trtllm/test-chart.ps1 --verbose
+      timeout-minutes: 2
+      working-directory: /workspace
+
   # providers_validation:
   #   runs-on: ubuntu-latest
   #   container: