Bump mocha from 5.2.0 to 7.0.1

Bumps [mocha](https://github.com/mochajs/mocha) from 5.2.0 to 7.0.1.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](mochajs/mocha@v5.2.0...v7.0.1)

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

Author: dependabot-preview[bot]

package.json

@@ -16,7 +16,7 @@
   },
   "devDependencies": {
     "cross-env": "^6.0.3",
-    "mocha": "^5.2.0",
+    "mocha": "^7.0.1",
     "which": "^1.2.0"
   },
   "dependencies": {