chore(deps): update dependency fs-extra to v8

Author: renovate-bot

package-lock.json

@@ -57,7 +57,7 @@
     "eslint": "5.16.0",
     "eslint-config-airbnb-base": "13.1.0",
     "eslint-plugin-import": "2.17.2",
-    "fs-extra": "7.0.1",
+    "fs-extra": "8.0.0",
     "jasmine-fix": "1.3.1"
   },
   "renovate": {