Bump jshint from 2.12.0 to 2.13.0

Bumps [jshint](https://github.com/jshint/jshint) from 2.12.0 to 2.13.0.
- [Release notes](https://github.com/jshint/jshint/releases)
- [Changelog](https://github.com/jshint/jshint/blob/2.13.0/CHANGELOG.md)
- [Commits](jshint/jshint@2.12.0...2.13.0)

---
updated-dependencies:
- dependency-name: jshint
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -44,7 +44,7 @@
     "type-is": "1.6.18"
   },
   "devDependencies": {
-    "jshint": "2.12.0",
+    "jshint": "2.13.0",
     "mocha": "5.2.0",
     "should": "13.2.3",
     "sinon": "7.5.0"