chore(package): update tap to version 13.1.1

Closes #3

Author: greenkeeper[bot]

package.json

@@ -19,7 +19,7 @@
     "codecov": "^3.2.0",
     "nyc": "^13.3.0",
     "standard": "^12.0.1",
-    "tap": "^12.6.1"
+    "tap": "^13.1.1"
   },
   "dependencies": {},
   "repository": {