Downgrade bitsandbytes==0.43.3 to fix peft 0.14.0 dispatch_bnb_4bit compress_statistics attr

Dockerfile

@@ -3,4 +3,5 @@ CMD pip uninstall -y autotrain-advanced && \
     pip install -U autotrain-advanced && \
     pip install --upgrade --no-deps "transformers==4.51.3" && \
     pip install --upgrade --no-deps "huggingface-hub>=0.30.0,<1.0" && \
+    pip install --upgrade --no-deps "bitsandbytes==0.43.3" && \
     autotrain app --host 0.0.0.0 --port 7860 --workers 1