chore(deps-dev): bump @types/mocha from 2.2.48 to 8.0.4

Bumps [@types/mocha](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/mocha) from 2.2.48 to 8.0.4.
- [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

@@ -50,7 +50,7 @@
     "rn-init": "rc-tools run react-native-init"
   },
   "devDependencies": {
-    "@types/mocha": "^2.2.32",
+    "@types/mocha": "^8.0.4",
     "@types/react": "~16.0.2",
     "@types/react-dom": "15.5.1",
     "@types/react-native": "^0.47.2",