added ci with override

.github/workflows/helm-check-override.yaml

@@ -0,0 +1,23 @@
+---
+name: helm validation override
+
+on:
+  push:
+    branches:
+      - devel
+  workflow_dispatch:
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Validate helm-chart with override
+        id: helm-chart-validation
+        uses: kubevious/cli@v1.0.62
+        with:
+          helm_chart: charts/rb-theron-sim
+          helm_override:  charts/rb-theron-sim/values-iron-zenoh.yaml