Bump @vitest/coverage-v8 from 4.0.6 to 4.0.8 in /packages/frontend

Bumps [@vitest/coverage-v8](https://github.com/vitest-dev/vitest/tree/HEAD/packages/coverage-v8) from 4.0.6 to 4.0.8.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.0.8/packages/coverage-v8)

---
updated-dependencies:
- dependency-name: "@vitest/coverage-v8"
  dependency-version: 4.0.8
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

packages/frontend/package-lock.json

@@ -63,7 +63,7 @@
     "@types/react-test-renderer": "^19.1.0",
     "@vitejs/plugin-legacy": "^7.2.1",
     "@vitejs/plugin-react": "^5.1.0",
-    "@vitest/coverage-v8": "^4.0.6",
+    "@vitest/coverage-v8": "^4.0.8",
     "@vitest/eslint-plugin": "^1.4.2",
     "eslint": "^9.38.0",
     "eslint-config-prettier": "^10.1.8",