Use rolldown for bundling (#621)

* Use rolldown for bundling

* update vite

---------

Co-authored-by: Mateusz Burzyński <mateuszburzynski@gmail.com>

package.json

@@ -5,7 +5,7 @@
   "type": "module",
   "main": "dist/index.js",
   "scripts": {
-    "build": "rollup -c",
+    "build": "rolldown -c",
     "test": "vitest",
     "test:watch": "pnpm test --watch",
     "typecheck": "tsc",
@@ -38,19 +38,13 @@
     "@changesets/cli": "^2.29.3",
     "@changesets/types": "^6.1.0",
     "@changesets/write": "^0.4.0",
-    "@rollup/plugin-commonjs": "^28.0.3",
-    "@rollup/plugin-json": "^6.1.0",
-    "@rollup/plugin-node-resolve": "^16.0.1",
-    "@rollup/plugin-terser": "^0.4.4",
     "@types/node": "^24.12.2",
     "@types/semver": "^7.5.0",
-    "builtin-modules": "^5.0.0",
-    "esbuild": "^0.25.4",
     "fixturez": "^1.1.0",
     "oxfmt": "^0.48.0",
-    "rollup": "^4.40.2",
+    "rolldown": "^1.0.1",
     "typescript": "^5.8.3",
-    "vitest": "^4.1.5"
+    "vitest": "^4.1.6"
   },
   "engines": {
     "node": ">=24"