Fix failing webhook e2e test

This commit introduces a change to the webhook tests that rely on
a grpc catalogSource that is stored in an off cluster registry.
These tests originally required that the following happen within a
minute:

1. The catalogSource is installed and ready to serve.
2. The contents of the bundle are unpacked and placed in an
installPlan.
3. The CSV is installed and in the ready state.

The tests will now wait for the catalogSource to be ready to serve
before moving onto steps 2 and 3.

Author: awgreene

Diff for: test/e2e/webhook_e2e_test.go

@@ -673,6 +673,10 @@ var _ = Describe("CSVs with a Webhook", func() {
 				require.NoError(GinkgoT(), crc.OperatorsV1alpha1().CatalogSources(source.GetNamespace()).Delete(context.TODO(), source.GetName(), metav1.DeleteOptions{}))
 			}
 
+			// Wait for the CatalogSource to be ready
+			_, err = fetchCatalogSourceOnStatus(crc, source.GetName(), source.GetNamespace(), catalogSourceRegistryPodSynced)
+			require.NoError(GinkgoT(), err)
+
 			// Create a Subscription for the webhook-operator
 			subscriptionName := genName("sub-")
 			cleanupSubscription := createSubscriptionForCatalog(crc, testNamespace, subscriptionName, source.GetName(), packageName, channelName, "", operatorsv1alpha1.ApprovalAutomatic)