Merge pull request #15 from strapi/greenkeeper/@types/sinon-5.0.0

Update @types/sinon to the latest version 🚀

Author: lucaperret

package.json

@@ -60,7 +60,7 @@
     "@types/form-data": "^2.2.1",
     "@types/js-cookie": "^2.1.0",
     "@types/qs": "^6.5.1",
-    "@types/sinon": "^4.3.3",
+    "@types/sinon": "^5.0.0",
     "ava": "^1.0.0-beta.4",
     "browser-env": "^3.2.5",
     "codecov": "^3.0.2",