Bump jsonfile from 5.0.0 to 6.1.0

Bumps [jsonfile](https://github.com/jprichardson/node-jsonfile) from 5.0.0 to 6.1.0.
- [Release notes](https://github.com/jprichardson/node-jsonfile/releases)
- [Changelog](https://github.com/jprichardson/node-jsonfile/blob/master/CHANGELOG.md)
- [Commits](jprichardson/node-jsonfile@5.0.0...6.1.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -35,7 +35,7 @@
     "didyoumean": "^1.2.1",
     "extfs": "0.0.7",
     "inquirer": "^7.0.0",
-    "jsonfile": "^5.0.0",
+    "jsonfile": "^6.1.0",
     "rc": "^1.1.6",
     "semver": "^6.1.1",
     "shelljs": "^0.8.3",