Bump @types/mocha from 7.0.2 to 8.0.2

Bumps [@types/mocha](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/mocha) from 7.0.2 to 8.0.2.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/mocha)

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

package.json

@@ -47,7 +47,7 @@
     "@commitlint/travis-cli": "^8.0.0",
     "@types/bluebird": "^3.0.0",
     "@types/chai": "^4.0.0",
-    "@types/mocha": "^7.0.0",
+    "@types/mocha": "^8.0.2",
     "@types/node": "^12.0.0",
     "bluebird": "^3.0.0",
     "chai": "^4.0.0",