chore(deps-dev): bump @vitest/coverage-v8 from 2.1.6 to 2.1.8

Bumps [@vitest/coverage-v8](https://github.com/vitest-dev/vitest/tree/HEAD/packages/coverage-v8) from 2.1.6 to 2.1.8.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v2.1.8/packages/coverage-v8)

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

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

Author: dependabot[bot]

packages/thirdweb/package.json

@@ -343,7 +343,7 @@
     "@types/react": "npm:[email protected]",
     "@viem/anvil": "0.0.10",
     "@vitejs/plugin-react": "^4.3.4",
-    "@vitest/coverage-v8": "2.1.6",
+    "@vitest/coverage-v8": "2.1.8",
     "@vitest/ui": "2.1.6",
     "cross-spawn": "7.0.6",
     "dotenv-mono": "^1.3.14",