Bump @types/mocha from 5.2.7 to 7.0.1 (#2457)

Bumps [@types/mocha](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/mocha) from 5.2.7 to 7.0.1.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/mocha)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -50,7 +50,7 @@
   },
   "devDependencies": {
     "@types/glob": "^7.1.1",
-    "@types/mocha": "~5.2.7",
+    "@types/mocha": "~7.0.1",
     "@types/mock-fs": "~4.10.0",
     "@types/node": "~10.11.0",
     "@types/node-fetch": "~2.5.4",