chore(deps): update dependency rolldown to v1.0.0-beta.51

Author: renovate[bot]

package.json

@@ -141,7 +141,7 @@
     "pkg-pr-new": "^0.0.60",
     "playwright-core": "^1.45.3",
     "prettier": "^3.6.2",
-    "rolldown": "1.0.0-beta.44",
+    "rolldown": "1.0.0-beta.51",
     "rollup": "^4.21.2",
     "rollup-plugin-dts": "^6.1.1",
     "rollup-plugin-node-builtins": "^2.1.2",