chore(package): update sinon to version 6.0.0

Author: greenkeeper[bot]

package.json

@@ -97,7 +97,7 @@
     "reflect-metadata": "^0.1.12",
     "remap-istanbul": "^0.11.1",
     "rimraf": "^2.6.2",
-    "sinon": "^5.0.10",
+    "sinon": "^6.0.0",
     "sinon-chai": "^3.1.0",
     "source-map-support": "^0.5.6",
     "ts-loader": "^4.3.0",