chore(deps): update dependency @rsbuild/core to v2

Author: renovate[bot]

package.json

@@ -34,7 +34,7 @@
   },
   "devDependencies": {
     "@playwright/test": "^1.59.1",
-    "@rsbuild/core": "1.7.5",
+    "@rsbuild/core": "2.0.3",
     "@rslib/core": "^0.21.3",
     "@rslint/core": "^0.5.0",
     "@types/node": "^24.12.2",