update dev dependencies

Author: ecarriou

package-lock.json

@@ -73,7 +73,7 @@
     "karma-coverage": "1.1.2",
     "karma-mocha": "1.3.0",
     "karma-script-launcher": "1.0.0",
-    "lint-staged": "9.0.1",
+    "lint-staged": "9.0.2",
     "load-grunt-tasks": "5.0.0",
     "mocha": "6.1.4",
     "prettier": "1.18.2"