Update dependency mocha to v7.1.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
mocha (source)	devDependencies	patch	7.1.0 -> 7.1.1

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Release Notes

mochajs/mocha

### [`v7.1.1`](https://togithub.com/mochajs/mocha/compare/v7.1.0...v7.1.1) [Compare Source](https://togithub.com/mochajs/mocha/compare/v7.1.0...v7.1.1)

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