[IMP] package: upgrade rolldown to latest version

Task: 6119495
Part-of: #8450
Signed-off-by: Lucas Lefèvre (lul) <lul@odoo.com>
Signed-off-by: Pierre Rousseau (pro) <pro@odoo.com>

Author: pro-odoo

package-lock.json

@@ -98,7 +98,7 @@
     "npm-run-all": "^4.1.5",
     "prettier": "^2.8.0",
     "prettier-plugin-organize-imports": "^3.2.2",
-    "rolldown": "^1.0.0-rc.12",
+    "rolldown": "^1.0.0-rc.15",
     "seedrandom": "^3.0.5",
     "typescript": "^5.8.2",
     "typescript-eslint": "^8.30.1",