fix: Pin transformers version for torch compatibility

- Force reinstall torch 2.4.0 in Dockerfile
- Pin transformers==4.47.1 (known working with bitsandbytes)
- Fix set_submodule AttributeError

components/runpod_trainer/Dockerfile

@@ -5,8 +5,11 @@ WORKDIR /app
 # Copy requirements first for better caching
 COPY requirements.txt /app/requirements.txt
 
-# Install dependencies
-RUN pip install --no-cache-dir -r requirements.txt
+# Upgrade pip and install dependencies
+# Force upgrade torch to ensure compatibility with transformers
+RUN pip install --upgrade pip && \
+    pip install --no-cache-dir torch==2.4.0 --force-reinstall && \
+    pip install --no-cache-dir -r requirements.txt
 
 # Copy handler and data
 COPY handler.py /app/handler.py

components/runpod_trainer/requirements.txt

@@ -1,5 +1,5 @@
 runpod>=1.7.0
-transformers>=4.48.0
+transformers==4.47.1
 datasets>=2.16.0
 accelerate>=0.30.0
 boto3>=1.34.0
@@ -8,5 +8,5 @@ scipy>=1.11.0
 safetensors>=0.4.0
 requests>=2.31.0
 peft>=0.14.0
-bitsandbytes>=0.45.0
+bitsandbytes==0.45.0
 trl>=0.14.0