⬆️ deps: Upgrade dependency xo to v0.42.0

Author: renovate-bot

package.json

@@ -87,7 +87,7 @@
     "pinst": "2.1.6",
     "power-assert": "1.6.1",
     "regenerator-runtime": "0.13.7",
-    "xo": "0.41.0"
+    "xo": "0.42.0"
   },
   "ava": {
     "files": [