Spawners placed together don't cull each other's faces

The monster spawner block was updated to render its inner faces, more closely resembling a cage, with the newly introduced trial spawners behaving the same. This mostly matches the behavior present on the Bedrock Edition, except for one thing: Placing multiple spawners together doesn't cull their inner faces, making it impossible to create a "bigger cage".

Steps to Reproduce:

1. Build a large cube with spawners;
2. Try to look inside.

Observed Results:
All of the spawner's faces are rendered, making it near impossible to see inside.

Expected Results:
Most of the spawner's faces culled, rendering only the front and the back.

Screenshots/Videos attached: Yes

Notes: