chore: bump @types/mocha from 8.2.2 to 9.0.0

Bumps [@types/mocha](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/mocha) from 8.2.2 to 9.0.0.
- [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] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -104,7 +104,7 @@
     "@types/chai": "^4.2.12",
     "@types/chai-as-promised": "^7.1.3",
     "@types/from2": "^2.3.0",
-    "@types/mocha": "^8.0.3",
+    "@types/mocha": "^9.0.0",
     "@types/node": "^15.12.5",
     "@typescript-eslint/eslint-plugin": "^4.1.0",
     "@typescript-eslint/parser": "^4.1.0",