test: add global priorityClassName test case

Author: joshiste

charts/steadybit-extension-istio/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 name: steadybit-extension-istio
 description: Steadybit Istio extension Helm chart for Kubernetes.
-version: 1.1.17
+version: 1.1.18
 appVersion: v1.0.18
 home: https://www.steadybit.com/
 icon: https://steadybit-website-assets.s3.amazonaws.com/logo-symbol-transparent.png