chore(package): update sinon to version 7.2.5

greenkeeper[bot] · greenkeeper[bot] · commit b1d10c81f0b1 · 2019-02-27T12:12:23.000Z
Closes #90
diff --git a/package.json b/package.json
@@ -29,7 +29,7 @@
     "jshint": "^2.9.5",
     "lodash": "~4.17.10",
     "mocha": "~5.2.0",
-    "sinon": "~6.1.3"
+    "sinon": "~7.2.5"
   },
   "dependencies": {
     "fuel-auth": "^3.1.0",
