🤖 config(travis): Lint config in script.

These changes were automatically generated by a transform whose code can be found at:
  - https://github.com/make-github-pseudonymous-again/rejuvenate/blob/1e99a03141f51bbb455be0733469df94f868e671/src/transforms/travis:add-lint-config-to-script.js
Please contact the author of the transform if you believe there was an error.

package.json

@@ -62,7 +62,7 @@
     "prepublishOnly": "pinst --disable",
     "release": "np --message ':hatching_chick: release: Bumping to v%s.'",
     "test": "ava",
-    "travis": "npm run lint && npm run cover"
+    "travis": "npm run lint-config && npm run lint && npm run cover"
   },
   "dependencies": {},
   "devDependencies": {