Update dependency mocha to v7

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
mocha (source)	devDependencies	major	^6.2.0 -> ^7.0.0

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Release Notes

mochajs/mocha

### [`v7.0.0`](https://togithub.com/mochajs/mocha/blob/master/CHANGELOG.md#​700--2020-01-05) [Compare Source](https://togithub.com/mochajs/mocha/compare/v6.2.2...v7.0.0) #### :boom: Breaking Changes - [#​3885](https://togithub.com/mochajs/mocha/issues/3885): **Drop Node.js v6.x support** ([**@​mojosoeun**](https://togithub.com/mojosoeun)) - [#​3890](https://togithub.com/mochajs/mocha/issues/3890): Remove Node.js debug-related flags `--debug`/`--debug-brk` and deprecate `debug` argument ([**@​juergba**](https://togithub.com/juergba)) - [#​3962](https://togithub.com/mochajs/mocha/issues/3962): Changes to command-line options ([**@​ParkSB**](https://togithub.com/ParkSB)): - `--list-interfaces` replaces `--interfaces` - `--list-reporters` replaces `--reporters` - Hook pattern of `this.skip()` ([**@​juergba**](https://togithub.com/juergba)): - [#​3859](https://togithub.com/mochajs/mocha/issues/3859): When conditionally skipping in a `it` test, related `afterEach` hooks are now executed - [#​3741](https://togithub.com/mochajs/mocha/issues/3741): When conditionally skipping in a `beforeEach` hook, subsequent inner `beforeEach` hooks are now skipped and related `afterEach` hooks are executed - [#​4136](https://togithub.com/mochajs/mocha/issues/4136): Disallow `this.skip()` within `after` hooks - [#​3967](https://togithub.com/mochajs/mocha/issues/3967): Remove deprecated `getOptions()` and `lib/cli/options.js` ([**@​juergba**](https://togithub.com/juergba)) - [#​4083](https://togithub.com/mochajs/mocha/issues/4083): Uncaught exception in `pending` test: don't swallow, but retrospectively fail the test for correct exit code ([**@​juergba**](https://togithub.com/juergba)) - [#​4004](https://togithub.com/mochajs/mocha/issues/4004): Align `Mocha` constructor's option names with command-line options ([**@​juergba**](https://togithub.com/juergba)) #### :tada: Enhancements - [#​3980](https://togithub.com/mochajs/mocha/issues/3980): Refactor and improve `--watch` mode with chokidar ([**@​geigerzaehler**](https://togithub.com/geigerzaehler)): - adds command-line options `--watch-files` and `--watch-ignore` - removes `--watch-extensions` - [#​3979](https://togithub.com/mochajs/mocha/issues/3979): Type "rs\\n" to restart tests ([**@​broofa**](https://togithub.com/broofa)) #### :fax: Deprecations These are _soft_-deprecated, and will emit a warning upon use. Support will be removed in (likely) the next major version of Mocha: - [#​3968](https://togithub.com/mochajs/mocha/issues/3968): Deprecate legacy configuration via `mocha.opts` ([**@​juergba**](https://togithub.com/juergba)) #### :bug: Fixes - [#​4125](https://togithub.com/mochajs/mocha/issues/4125): Fix timeout handling with `--inspect-brk`/`--inspect` ([**@​juergba**](https://togithub.com/juergba)) - [#​4070](https://togithub.com/mochajs/mocha/issues/4070): `Mocha` constructor: improve browser setup ([**@​juergba**](https://togithub.com/juergba)) - [#​4068](https://togithub.com/mochajs/mocha/issues/4068): XUnit reporter should handle exceptions during diff generation ([**@​rgroothuijsen**](https://togithub.com/rgroothuijsen)) - [#​4030](https://togithub.com/mochajs/mocha/issues/4030): Fix `--allow-uncaught` with `this.skip()` ([**@​juergba**](https://togithub.com/juergba)) #### :mag: Coverage - [#​4109](https://togithub.com/mochajs/mocha/issues/4109): Add Node.js v13.x to CI test matrix ([**@​juergba**](https://togithub.com/juergba)) #### :book: Documentation - [#​4129](https://togithub.com/mochajs/mocha/issues/4129): Fix broken links ([**@​SaeromB**](https://togithub.com/SaeromB)) - [#​4127](https://togithub.com/mochajs/mocha/issues/4127): Add reporter alias names to docs ([**@​khg0712**](https://togithub.com/khg0712)) - [#​4101](https://togithub.com/mochajs/mocha/issues/4101): Clarify invalid usage of `done()` ([**@​jgehrcke**](https://togithub.com/jgehrcke)) - [#​4092](https://togithub.com/mochajs/mocha/issues/4092): Replace `:coffee:` with emoji ☕️ ([**@​pzrq**](https://togithub.com/pzrq)) - [#​4088](https://togithub.com/mochajs/mocha/issues/4088): Initial draft of project charter ([**@​boneskull**](https://togithub.com/boneskull)) - [#​4066](https://togithub.com/mochajs/mocha/issues/4066): Change `sh` to `bash` for code block in docs/index.md ([**@​HyunSangHan**](https://togithub.com/HyunSangHan)) - [#​4045](https://togithub.com/mochajs/mocha/issues/4045): Update README.md concerning GraphicsMagick installation ([**@​HyunSangHan**](https://togithub.com/HyunSangHan)) - [#​3988](https://togithub.com/mochajs/mocha/issues/3988): Fix sponsors background color for readability ([**@​outsideris**](https://togithub.com/outsideris)) #### :nut_and_bolt: Other - [#​4118](https://togithub.com/mochajs/mocha/issues/4118): Update node-environment-flags to 1.0.6 ([**@​kylef**](https://togithub.com/kylef)) - [#​4097](https://togithub.com/mochajs/mocha/issues/4097): Add GH Funding Metadata ([**@​SheetJSDev**](https://togithub.com/SheetJSDev)) - [#​4089](https://togithub.com/mochajs/mocha/issues/4089): Add funding information to `package.json` ([**@​Munter**](https://togithub.com/Munter)) - [#​4077](https://togithub.com/mochajs/mocha/issues/4077): Improve integration tests ([**@​soobing**](https://togithub.com/soobing))

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