Bump mocha from 8.4.0 to 9.0.0

Bumps [mocha](https://github.com/mochajs/mocha) from 8.4.0 to 9.0.0.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](mochajs/mocha@v8.4.0...v9.0.0)

---
updated-dependencies:
- dependency-name: mocha
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -414,7 +414,7 @@
     "@typescript-eslint/parser": "^4.26.0",
     "eslint": "^7.28.0",
     "glob": "^7.1.7",
-    "mocha": "^8.4.0",
+    "mocha": "^9.0.0",
     "ts-loader": "^9.2.3",
     "typescript": "^4.3.2",
     "vscode-test": "^1.5.2",