chore(deps-dev): bump @vitest/coverage-v8 from 3.2.4 to 4.0.8

Bumps [@vitest/coverage-v8](https://github.com/vitest-dev/vitest/tree/HEAD/packages/coverage-v8) from 3.2.4 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-major
...

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

Author: dependabot[bot]

package.json

@@ -115,7 +115,7 @@
     "@biomejs/biome": "2.3.4",
     "@ipld/dag-cbor": "^9.2.5",
     "@types/node": "^24.5.1",
-    "@vitest/coverage-v8": "^3.2.4",
+    "@vitest/coverage-v8": "^4.0.8",
     "tsx": "^4.20.5",
     "typescript": "^5.9.2",
     "vitest": "^3.2.4"