Update dependency lint-staged to v7.2.0

Author: renovate-bot

package.json

@@ -59,7 +59,7 @@
     "express": "4.16.3",
     "husky": "0.14.3",
     "jest": "22.4.3",
-    "lint-staged": "7.0.4",
+    "lint-staged": "7.2.0",
     "nodemon": "1.17.3",
     "opentracing": "0.14.1",
     "prettier": "1.12.0",