style: fix formatting after CI commit

Seems like 8e5fa3a broke the
formatting.

Author: gzm0

packages/openapi-typescript-helpers/package.json

@@ -23,12 +23,7 @@
     },
     "./*": "./*"
   },
-  "files": [
-    "index.js",
-    "index.cjs",
-    "index.d.ts",
-    "index.d.cts"
-  ],
+  "files": ["index.js", "index.cjs", "index.d.ts", "index.d.cts"],
   "homepage": "https://openapi-ts.dev",
   "repository": {
     "type": "git",