Bump @types/mocha from 10.0.1 to 10.0.3 in /test/util

Bumps [@types/mocha](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/mocha) from 10.0.1 to 10.0.3.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/mocha)

---
updated-dependencies:
- dependency-name: "@types/mocha"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

test/util/package.json

@@ -18,7 +18,7 @@
     "@types/chai": "^4.3.9",
     "@types/glob-to-regexp": "^0.4.1",
     "@types/mdast": "^4.0.0",
-    "@types/mocha": "^10.0.1",
+    "@types/mocha": "^10.0.3",
     "@types/mock-fs": "^4.13.1",
     "@types/node": "^20.3.3",
     "@types/sinon": "^10.0.16",