The dig site in desert pyramids can be replaced by cave features

Desert pyramids generating inside of caves is intentional behavior per the resolution of MC-238647, however when pyramids happen to generate inside of caves, the recently added dig site can be replaced by cave features. Most notably in this example; lush caves.

Steps to Reproduce:

1. Create a world using the seed 2482490754905255652
2. Teleport to the temple:

   /execute in minecraft:overworld run tp @s 12.70 -52.51 13.47 663.40 42.22
   

Expected Result:

The structure would generate as usual with no features inside of it.

Observed Behavior:

Part of the temple (the dig site) is replaced by cave features.

Screenshots/Videos:

Notes:

1. Related to MC-275029 MC-275031 MC-238647