chore(deps): update dependency c8 to v9

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
c8	^8.0.0 -> ^9.0.0

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Release Notes

bcoe/c8 (c8)

### [`v9.0.0`](https://togithub.com/bcoe/c8/blob/HEAD/CHANGELOG.md#900-2024-01-03) [Compare Source](https://togithub.com/bcoe/c8/compare/v8.0.1...v9.0.0) ##### ⚠ BREAKING CHANGES - **build:** minimum Node.js version is now 14.14.0 ##### Features - **build:** minimum Node.js version is now 14.14.0 ([2cdc86b](https://togithub.com/bcoe/c8/commit/2cdc86bd0ac67ecf0f700212dc5f8a830ff9164f)) - **deps:** update foreground-child to promise API ([#​512](https://togithub.com/bcoe/c8/issues/512)) ([b46b640](https://togithub.com/bcoe/c8/commit/b46b6401274488db5b1027a78090257095ae4f72)) - **deps:** use Node.js built in rm ([2cdc86b](https://togithub.com/bcoe/c8/commit/2cdc86bd0ac67ecf0f700212dc5f8a830ff9164f))

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