ltx2.3 config change

Author: prishajain1

src/maxdiffusion/pipelines/ltx2/ltx2_pipeline.py

@@ -122,7 +122,7 @@ def create_model(rngs: nnx.Rngs, ltx2_config: dict):
         "audio_in_channels": 128,
         "audio_num_attention_heads": 32,
         "audio_attention_head_dim": 64,
-        "audio_cross_attention_dim": 4096,
+        "audio_cross_attention_dim": 2048,
         "num_layers": 48,
         "caption_channels": 4096,
         "audio_caption_channels": 2048,