chore(package): update mocha to version 7.2.0

Closes #127

Author: greenkeeper[bot]

package.json

@@ -48,7 +48,7 @@
     "conventional-commits-detector": "^1.0.2",
     "conventional-recommended-bump": "^5.0.0",
     "globby": "^9",
-    "mocha": "^6",
+    "mocha": "^7.2.0",
     "npm-run-all": "^4.1.5",
     "nyc": "^14",
     "rimraf": "^2.6.3",