chore(package): update ava to version 1.3.1

Author: greenkeeper[bot]

package.json

@@ -24,7 +24,7 @@
     "parse-json": "^4.0.0"
   },
   "devDependencies": {
-    "ava": "^1.0.1",
+    "ava": "^1.3.1",
     "codecov": "^3.0.0",
     "commitizen": "^3.0.0",
     "cz-conventional-changelog": "^2.0.0",