chore(deps): bump the npm_and_yarn group across 1 directory with 3 updates

Bumps the npm_and_yarn group with 2 updates in the / directory: [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) and [fast-uri](https://github.com/fastify/fast-uri).


Updates `vitest` from 3.2.4 to 4.1.8
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Changelog](https://github.com/vitest-dev/vitest/blob/main/docs/releases.md)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.1.8/packages/vitest)

Updates `fast-uri` from 3.1.0 to 3.1.2
- [Release notes](https://github.com/fastify/fast-uri/releases)
- [Commits](fastify/fast-uri@v3.1.0...v3.1.2)

Updates `postcss` from 8.5.8 to 8.5.15
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.8...8.5.15)

---
updated-dependencies:
- dependency-name: vitest
  dependency-version: 4.1.8
  dependency-type: direct:development
  dependency-group: npm_and_yarn
- dependency-name: fast-uri
  dependency-version: 3.1.2
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: postcss
  dependency-version: 8.5.15
  dependency-type: indirect
  dependency-group: npm_and_yarn
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]