Add install PyYAML

Author: nhuantho

.github/workflows/helm-chart.yaml

@@ -50,7 +50,7 @@ jobs:
           python-version: "3.11"
 
       - name: Install dependencies
-        run: pip install jsonschema==4.26.0
+        run: pip install jsonschema==4.26.0 PyYAML==6.0.3
 
       - name: Run unstable test reporter
         run: python tools/ci/helm_ci/validate_helm.py

tools/ci/helm_ci/validate_helm.py

@@ -26,6 +26,7 @@
 # requires-python = ">=3.10"
 # dependencies = [
 #   "jsonschema==4.26.0",
+#   "PyYAML==6.0.3",
 # ]
 # ///