chore(package): update @types/sinon to version 2.3.4

Author: greenkeeper[bot]

Diff for: package.json

@@ -66,7 +66,7 @@
     "@types/node": "7.0.32",
     "@types/rimraf": "2.0.2",
     "@types/object-hash": "0.5.29",
-    "@types/sinon": "2.3.3",
+    "@types/sinon": "2.3.4",
     "@types/temp": "0.8.29",
     "commitizen": "^2.9.6",
     "cz-conventional-changelog": "^2.0.0",