chore(e2e): add tests for RBAC policyDecisionPrecedence config

Signed-off-by: Jessica He <jhe@redhat.com>

Author: JessicaJHee

.ibm/pipelines/resources/config_map/app-config-rhdh-rbac.yaml

@@ -136,4 +136,5 @@ permission:
     admin:
       users:
         - name: user:default/rhdh-qe
+    policyDecisionPrecedence: basic
 includeTransitiveGroupOwnership: true