Fix log query broken after refactor

Add missing levels import from the logging library in
ControlConnection.js.

packages/master/src/ControlConnection.js

@@ -6,7 +6,7 @@ const winston = require("winston");
 const libConfig = require("@clusterio/lib/config");
 const libErrors = require("@clusterio/lib/errors");
 const libLink = require("@clusterio/lib/link");
-const { logger } = require("@clusterio/lib/logging");
+const { levels, logger } = require("@clusterio/lib/logging");
 const libLoggingUtils = require("@clusterio/lib/logging_utils");
 const libPlugin = require("@clusterio/lib/plugin");
 const libPrometheus = require("@clusterio/lib/prometheus");