chore(package): update @types/mocha to version 5.0.0 (#228)

Author: greenkeeper[bot]

package.json

@@ -49,7 +49,7 @@
   "devDependencies": {
     "@types/glob": "^5.0.33",
     "@types/micromatch": "^3.1.0",
-    "@types/mocha": "^2.2.42",
+    "@types/mocha": "^5.0.0",
     "@types/node": "^9.3.0",
     "decache": "^4.3.0",
     "eslint": "^4.12.1",