chore(deps): update dependency mocha to v9

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
mocha (source)	^8.4.0 -> ^9.0.0

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Release Notes

mochajs/mocha

### [`v9.0.1`](https://togithub.com/mochajs/mocha/blob/master/CHANGELOG.md#​901--2021-06-18) [Compare Source](https://togithub.com/mochajs/mocha/compare/v9.0.0...v9.0.1) #### :nut_and_bolt: Other - [#​4657](https://togithub.com/mochajs/mocha/issues/4657): Browser: add separate bundle for modern browsers ([**@​juergba**](https://togithub.com/juergba)) We added a separate browser bundle `mocha-es2018.js` in javascript ES2018, as we skipped the transpilation down to ES5. This is an **experimental step towards freezing Mocha's support of IE11**. - [#​4653](https://togithub.com/mochajs/mocha/issues/4653): ESM: proper version check in `hasStableEsmImplementation` ([**@​alexander-fenster**](https://togithub.com/alexander-fenster)) ### [`v9.0.0`](https://togithub.com/mochajs/mocha/blob/master/CHANGELOG.md#​900--2021-06-07) [Compare Source](https://togithub.com/mochajs/mocha/compare/v8.4.0...v9.0.0) #### :boom: Breaking Changes - [#​4633](https://togithub.com/mochajs/mocha/issues/4633): **Drop Node.js v10.x support** ([**@​juergba**](https://togithub.com/juergba)) - [#​4635](https://togithub.com/mochajs/mocha/issues/4635): `import`-first loading of test files ([**@​giltayar**](https://togithub.com/giltayar)) **Mocha is going ESM-first!** This means that it will now use ESM `import(test_file)` to load the test files, instead of the CommonJS `require(test_file)`. This is not a problem, as `import` can also load most files that `require` does. In the rare cases where this fails, it will fallback to `require(...)`. This ESM-first approach is the next step in Mocha's ESM migration, and allows ESM loaders to load and transform the test file. - [#​4636](https://togithub.com/mochajs/mocha/issues/4636): Remove deprecated `utils.lookupFiles()` ([**@​juergba**](https://togithub.com/juergba)) - [#​4638](https://togithub.com/mochajs/mocha/issues/4638): Limit the size of `actual`/`expected` for `diff` generation ([**@​juergba**](https://togithub.com/juergba)) - [#​4389](https://togithub.com/mochajs/mocha/issues/4389): Refactoring: Consuming log-symbols alternate to code for win32 in reporters/base ([**@​MoonSupport**](https://togithub.com/MoonSupport)) #### :tada: Enhancements - [#​4640](https://togithub.com/mochajs/mocha/issues/4640): Add new option `--dry-run` ([**@​juergba**](https://togithub.com/juergba)) #### :bug: Fixes - [#​4128](https://togithub.com/mochajs/mocha/issues/4128): Fix: control stringification of error message ([**@​syeutyu**](https://togithub.com/syeutyu)) #### :nut_and_bolt: Other - [#​4646](https://togithub.com/mochajs/mocha/issues/4646): Deprecate `Runner(suite: Suite, delay: boolean)` signature ([**@​juergba**](https://togithub.com/juergba)) - [#​4643](https://togithub.com/mochajs/mocha/issues/4643): Update production dependencies ([**@​juergba**](https://togithub.com/juergba))

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