chore(package): update ava to version 3.3.0

Closes #12

Author: greenkeeper[bot]

package.json

@@ -26,7 +26,7 @@
   },
   "homepage": "https://github.com/dimapaloskin/micro-compose#readme",
   "devDependencies": {
-    "ava": "^0.25.0",
+    "ava": "^3.3.0",
     "xo": "^0.20.2"
   },
   "xo": {