build(deps-dev): bump mocha from 6.1.3 to 6.1.4
build(deps-dev): bump mocha from 6.1.3 to 6.1.4

Bumps [mocha](https://github.com/mochajs/mocha) from 6.1.3 to 6.1.4.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mochajs/mocha/compare/v6.1.3...v6.1.4)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
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