chore(deps-dev): bump @types/mocha from 5.2.7 to 9.1.0 (#61)

Bumps [@types/mocha](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/mocha) from 5.2.7 to 9.1.0.
- [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-major
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -22,7 +22,7 @@
   ],
   "devDependencies": {
     "@types/chai": "^4.1.4",
-    "@types/mocha": "^5.2.3",
+    "@types/mocha": "^9.1.0",
     "@types/node": "^10.3.5",
     "@typescript-eslint/eslint-plugin": "^5.10.2",
     "@typescript-eslint/parser": "^5.10.2",