Currently, the Webhook support OTE tests don't run on disconnected environments. This signal is required for us to be able to flip the feature to GA in openshift/api. While a broader solution to the problem of disconnected environment tests are needed, to unblock the feature promotion we update our tests to follow the fixture image building process used in the olmv1_incompatible tests and build our own catalog and bundle images for the tests.

However, for these tests, we'll need an actual controller backing the operator so that we can test the webhooks end-to-end. Therefore, we should add the webhook-operator controller image to the origin mirror image set as described here: https://github.com/openshift/origin/tree/main/test/extended/util/image then follow the same procedure as in olmv1_incompatible to build the test fixures making sure the bundle deployments reference the webhook operator controller image.