Bump flat from 4.1.0 to 5.0.0 (#2)

Bump flat from 4.1.0 to 5.0.0

Author: hacknug

package.json

@@ -29,7 +29,7 @@
     "test": "jest"
   },
   "dependencies": {
-    "flat": "^4.1.0",
+    "flat": "^5.0.0",
     "lodash": "^4.17.11"
   },
   "devDependencies": {