fix(package): update cosmiconfig to version 5.0.4

Closes #13

Author: greenkeeper[bot]

package.json

@@ -20,7 +20,7 @@
     "meow": "^4.0.0",
     "ora": "^1.3.0",
     "globby": "^7.1.1",
-    "cosmiconfig": "^4.0.0",
+    "cosmiconfig": "^5.0.4",
     "fs-extra": "^5.0.0",
     "find-cache-dir": "^1.0.0",
     "p-limit": "^1.1.0",