Update laravel/serializable-closure requirement || ^2.0.0

Updates the requirements on [laravel/serializable-closure](https://github.com/laravel/serializable-closure) to permit the latest version.
- [Release notes](https://github.com/laravel/serializable-closure/releases)
- [Changelog](https://github.com/laravel/serializable-closure/blob/2.x/CHANGELOG.md)
- [Commits](laravel/serializable-closure@v1.3.1...v2.0.0)

---
updated-dependencies:
- dependency-name: laravel/serializable-closure
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -20,7 +20,7 @@
         "dragonmantank/cron-expression": "^3.3.3",
         "fakerphp/faker": "^1.23",
         "illuminate/view": "^9.52.15",
-        "laravel/serializable-closure": "^1.3.1",
+        "laravel/serializable-closure": "^1.3.1 || ^2.0.0",
         "league/commonmark": "^2.4.0",
         "league/flysystem": "^3.15",
         "monolog/monolog": "^2.9.1",