Update chokidar

Author: wooorm

package.json

@@ -23,7 +23,7 @@
   "dependencies": {
     "camelcase": "^5.0.0",
     "chalk": "^2.0.0",
-    "chokidar": "^2.0.0",
+    "chokidar": "^3.0.0",
     "fault": "^1.0.2",
     "json5": "^2.0.0",
     "minimist": "^1.2.0",