[12.x] Fix using `null` cache store triggering PHP 8.5 deprecation#58074

taylorotwell merged 2 commits intolaravel:12.xlaravel/framework:12.xfrom

jnoordsij:fix-cachemanager-nullkey-deprecationjnoordsij/laravel-framework:fix-cachemanager-nullkey-deprecationCopy head branch name to clipboard