Fix Redis pipeline facade annotation

[MNazikk]

Context

The Redis facade currently declares:

@method static \Redis|bool pipeline()

However, Laravel's pipeline method accepts an optional callback, as documented and implemented by the Redis connection:

Redis::pipeline(function ($pipe) {
    // ...
});

The current annotation causes IDEs and static analysis tools to report valid callback usage as an invalid method call.

Changes

• Update the Redis facade pipeline annotation to match the actual method signature.

No runtime behavior is changed. This only improves IDE support and aligns the facade annotation with Laravel's documented API.