chore(deps): bump the npm group with 3 updates (#811)

Bumps the npm group with 3 updates: [@vitest/coverage-v8](https://github.com/vitest-dev/vitest/tree/HEAD/packages/coverage-v8), [prettier](https://github.com/prettier/prettier) and [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).


Updates `@vitest/coverage-v8` from 4.1.8 to 4.1.9
- [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/v4.1.9/packages/coverage-v8)

Updates `prettier` from 3.8.4 to 3.9.0
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](https://github.com/prettier/prettier/compare/3.8.4...3.9.0)

Updates `vitest` from 4.1.8 to 4.1.9
- [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/v4.1.9/packages/vitest)

---
updated-dependencies:
- dependency-name: "@vitest/coverage-v8"
  dependency-version: 4.1.9
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: npm
- dependency-name: prettier
  dependency-version: 3.9.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: npm
- dependency-name: vitest
  dependency-version: 4.1.9
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: npm
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -36,9 +36,9 @@
     "@types/glob": "^9.0.0",
     "@types/mime-types": "^3.0.1",
     "@types/node": "^24",
-    "@vitest/coverage-v8": "^4.1.8",
+    "@vitest/coverage-v8": "^4.1.9",
     "esbuild": "^0.28.1",
-    "prettier": "3.8.4",
+    "prettier": "3.9.0",
     "ts-node": "^10.9.2",
     "typescript": "^6.0.3",
     "typescript-formatter": "^7.2.2",