Bump @types/mocha from 7.0.2 to 8.0.0

Bumps [@types/mocha](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/mocha) from 7.0.2 to 8.0.0.
- [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

@@ -43,7 +43,7 @@
     "@types/chai": "^4.2.11",
     "@types/diff": "^4.0.2",
     "@types/lodash": "^4.14.155",
-    "@types/mocha": "^7.0.2",
+    "@types/mocha": "^8.0.0",
     "@types/node": "^14.0.13",
     "@types/yargs": "^15.0.5",
     "@typescript-eslint/eslint-plugin": "^3.3.0",