[NE-1994] Verify that Istio's manual deployment feature is not enabled - Red Hat Issue Tracker

Story Points:
2
Blocked:
False
Blocked Reason:
None
Ready:
False
Epic Link:
Other Tests for Gateway API with Ingress
Release Note Type:
Release Note Not Required
Git Pull Request:
https://github.com/openshift/cluster-ingress-operator/pull/1204
Intelligence Requested:
Market:

Add a test to cluster-ingress-operator's E2E tests to verify that Istio is configured not to allow manual deployment.

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