Bump mocha from 8.1.2 to 8.1.3

Bumps [mocha](https://github.com/mochajs/mocha) from 8.1.2 to 8.1.3.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](mochajs/mocha@v8.1.2...v8.1.3)

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

Author: dependabot[bot]

package-lock.json

@@ -42,6 +42,6 @@
     "babel-eslint": "^10.1.0",
     "eslint": "^7.7.0",
     "eslint-config-airbnb": "^18.2.0",
-    "mocha": "^8.1.2"
+    "mocha": "^8.1.3"
   }
 }