Allow for alerts to fire from an e2e test

Sometimes, alerts are triggers to test a feature [1]. We allow for them to fire in CI
with a specific prefix on the alert name to avoid overlapping with any alert from
production.

[1]. https://redhat.atlassian.net/browse/OTA-1813

Author: hongkailiu

pkg/monitortests/testframework/legacytestframeworkmonitortests/alerts.go

@@ -243,6 +243,11 @@ func isSkippedAlert(alertName string) bool {
 			return true
 		}
 	}
+	// The prefix is specific enough to avoid overlapping with any alert from Production.
+	// These alerts are used as triggers for an e2e test.
+	if strings.HasPrefix(alertName, "TestAlertFeatureE2ETest") {
+		return true
+	}
 	return false
 }