build: update dep dev

Author: Scrum

package-lock.json

@@ -20,7 +20,7 @@
     "posthtml-render": "^1.2.3"
   },
   "devDependencies": {
-    "ava": "^3.11.1",
+    "ava": "^3.12.1",
     "coveralls": "^3.1.0",
     "jsdoc-to-markdown": "^6.0.1",
     "nyc": "^15.1.0",