chore(deps): update dependency ava to v5

Author: renovate[bot]

package.json

@@ -38,7 +38,7 @@
     "commander": "^4.0.0"
   },
   "devDependencies": {
-    "ava": "1.4.1",
+    "ava": "5.2.0",
     "nyc": "14.1.1",
     "standard": "14.3.1"
   },