chore(package): update rewire to version 4.0.1

Closes #48

Author: greenkeeper[bot]

package.json

@@ -24,7 +24,7 @@
     "codecov": "^3.0.0",
     "nyc": "^11.4.1",
     "reshape": "^0.4.2",
-    "rewire": "^3.0.0",
+    "rewire": "^4.0.1",
     "snazzy": "^7.0.0",
     "standard": "^10.0.3",
     "sugarml": "^0.6.0"