fix: compatibility with log aggregators

src/transformations/add-log-level.ts

@@ -19,6 +19,11 @@ import {Transformation} from '../transformation';
  * Transformation that adds the log level to output
  */
 export class AddLogLevel implements Transformation {
+  /**
+   * Keep this transformation in production environments
+   */
+  useInProduction = true;
+
   /**
    * Add log level to output
    *