chore: adding bash script

scripts/test-appset.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+argocd app delete applicationset --cascade=false --grpc-web
+kubectl delete applicationsets test-appset --cascade=orphan -n argocd
+argocd app delete demo-test1 --cascade=false --grpc-web
+argocd app delete demo-test2 --cascade=false --grpc-web