Bump mocha and @types/mocha

Bumps [mocha](https://github.com/mochajs/mocha) and [@types/mocha](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/mocha). These dependencies needed to be updated together.

Updates `mocha` from 8.3.2 to 10.0.0
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](mochajs/mocha@v8.3.2...v10.0.0)

Updates `@types/mocha` from 8.2.0 to 10.0.0
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/mocha)

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

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

package.json

@@ -13,7 +13,7 @@
   "devDependencies": {
     "@types/chai": "^4.2.16",
     "@types/highlight.js": "^10.1.0",
-    "@types/mocha": "^8.2.0",
+    "@types/mocha": "^10.0.0",
     "@types/react": "^17.0.3",
     "@types/react-dom": "*",
     "@typescript-eslint/eslint-plugin": "^4.0.0",
@@ -27,7 +27,7 @@
     "gulp-connect": "^5.7.0",
     "gulp-sourcemaps": "^3.0.0",
     "highlight.js": "^10.6.0",
-    "mocha": "^8.3.2",
+    "mocha": "^10.0.0",
     "nyc": "^15.1.0",
     "react": "^17.0.1",
     "react-dom": "^17.0.1",