Merge pull request #1990 from atom/greenkeeper/sinon-7.2.5

Update sinon to the latest version 🚀

Author: smashwilson

package-lock.json

@@ -103,7 +103,7 @@
     "nyc": "13.3.0",
     "relay-compiler": "3.0.0",
     "semver": "5.6.0",
-    "sinon": "7.2.4",
+    "sinon": "7.2.5",
     "test-until": "1.1.1"
   },
   "consumedServices": {