Bump mocha from 6.2.3 to 7.2.0

Bumps [mocha](https://github.com/mochajs/mocha) from 6.2.3 to 7.2.0.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](mochajs/mocha@v6.2.3...v7.2.0)

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

package.json

@@ -17,7 +17,7 @@
     "eslint-plugin-node": "^5.2.1",
     "eslint-plugin-promise": "^3.8.0",
     "eslint-plugin-standard": "^3.1.0",
-    "mocha": "^6.1.4",
+    "mocha": "^7.2.0",
     "mocha-lcov-reporter": "^1.3.0",
     "nyc": "^11.9.0"
   },