chore(deps-dev): Bump the vitest group with 2 updates

Bumps the vitest group with 2 updates: [@vitest/coverage-v8](https://github.com/vitest-dev/vitest/tree/HEAD/packages/coverage-v8) and [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).


Updates `@vitest/coverage-v8` from 4.0.15 to 4.0.16
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.0.16/packages/coverage-v8)

Updates `vitest` from 4.0.15 to 4.0.16
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.0.16/packages/vitest)

---
updated-dependencies:
- dependency-name: "@vitest/coverage-v8"
  dependency-version: 4.0.16
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: vitest
- dependency-name: vitest
  dependency-version: 4.0.16
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: vitest
...

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

Author: dependabot[bot]

package-lock.json

@@ -65,7 +65,7 @@
     "@types/escape-html": "^1.0.4",
     "@types/gettext-parser": "^8.0.0",
     "@types/node": "^24.10.1",
-    "@vitest/coverage-v8": "^4.0.15",
+    "@vitest/coverage-v8": "^4.0.16",
     "eslint": "^9.39.2",
     "gettext-parser": "^8.0.0",
     "jsdom": "^27.3.0",