Fix failing log test

Author: sjberman

tests/suite/nginxgateway_test.go

@@ -243,10 +243,7 @@ var _ = Describe("NginxGateway", Ordered, Label("functional", "nginxGateway"), f
 							return false
 						}
 
-						return strings.Contains(
-							logs,
-							"\"current\":\"debug\",\"msg\":\"Log level changed\",\"prev\":\"info\"",
-						)
+						return strings.Contains(logs, "\"level\":\"debug\"")
 					}).WithTimeout(timeoutConfig.GetTimeout).
 					WithPolling(500 * time.Millisecond).
 					Should(BeTrue())