Fix: unpin soundfile and audiomentations to resolve maliba-ai conflicts

requirements.txt

@@ -22,8 +22,8 @@ peft==0.18.1
 
 # Audio processing
 librosa>=0.10.2
-soundfile==0.12.1
-audiomentations==0.43.1
+soundfile>=0.12.1
+audiomentations>=0.43.1
 
 # Quantization (CPU: installs fine; 4-bit/8-bit requires GPU at runtime)
 bitsandbytes==0.49.2