[12.x] Emit underlying store name in cache events when using failover

[jessarcher]

When using the failover cache, currently the cache events have a null storeName:

Event::listen([
    CacheHit::class,
    CacheMissed::class,
], dump(...));

Cache::store('failover')->remember('time', 10, fn () => now()->toDateTimeString());


Illuminate\Cache\Events\CacheHit {
  +storeName: null
  +key: "time"
  +tags: []
  +value: "2025-10-23 06:11:09"
}

This is because the failover config is not currently passed to the Illuminate\Cache\Respository instance.

However, if we were to just pass the config, then the events would have the name failover, which I don't think is ideal:

Illuminate\Cache\Events\CacheHit {
  +storeName: "failover"
  +key: "time"
  +tags: []
  +value: "2025-10-23 06:14:18"
}

Instead, this PR disables events for the repository that wraps the FailoverStore store, and modifies it to call the underlying repositories, instead of the underlying stores, so that cache events are emitted with the underlying store name:

Illuminate\Cache\Events\CacheHit {
  +storeName: "database"
  +key: "time"
  +tags: []
  +value: "2025-10-23 06:16:30"
}

This is similar to the MemoizedStore which also disables events for itself, and calls the underlying repository, rather than the underlying store.