Upgrade: Bump mocha from 8.1.1 to 8.1.2 (#141)

Bumps [mocha](https://github.com/mochajs/mocha) from 8.1.1 to 8.1.2.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](mochajs/mocha@v8.1.1...v8.1.2)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>