Bump jshint from 2.12.0 to 2.13.0
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](https://github.com/jshint/jshint/compare/2.12.0...2.13.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
tjenkinson/hls-live-thumbnails