Update sinon to 4.2.2

Zibi Braniecki · Zibi Braniecki · commit 01dfaefef3c8 · 2018-02-09T17:45:32.000-08:00
diff --git a/fluent/package.json b/fluent/package.json
@@ -44,6 +44,6 @@
     "node": ">=8.9.0"
   },
   "devDependencies": {
-    "sinon": "^2.1.0"
+    "sinon": "^4.2.2"
   }
 }
