chore(package): update mocha to version 7.1.1

Closes #16

Author: greenkeeper[bot]

package.json

@@ -75,7 +75,7 @@
         "decache": "^4.5.1",
         "glob": "^7.1.4",
         "istanbul": "^0.4.5",
-        "mocha": "^6.1.4",
+        "mocha": "^7.1.1",
         "remap-istanbul": "^0.13.0",
         "simple-mock": "^0.8.0",
         "tslint": "^5.18.0",