Update dependency gulp-mocha to v9 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
gulp-mocha	8.0.0 -> 9.0.0

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Release Notes

sindresorhus/gulp-mocha (gulp-mocha)

### [`v9.0.0`](https://togithub.com/sindresorhus/gulp-mocha/releases/tag/v9.0.0) [Compare Source](https://togithub.com/sindresorhus/gulp-mocha/compare/v8.0.0...v9.0.0) ##### Breaking - Require Node.js 18 [`e51ba80`](https://togithub.com/sindresorhus/gulp-mocha/commit/e51ba80) ##### Improvements - Update Mocha from v8 to v10 [`e51ba80`](https://togithub.com/sindresorhus/gulp-mocha/commit/e51ba80)

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• [ ] If you want to rebase/retry this PR, check this box

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