chore: add author & funding link

Author: sxzz

package.json

@@ -24,7 +24,8 @@
     "type": "git",
     "url": "git+https://github.com/unplugin/unplugin-lightningcss.git"
   },
-  "author": "三咲智子 <[email protected]>",
+  "author": "三咲智子 Kevin Deng <[email protected]>",
+  "funding": "https://github.com/sponsors/sxzz",
   "files": [
     "dist"
   ],