Update PDF to Markdown converter API with NVIDIA L4 support

Dockerfile

@@ -33,7 +33,7 @@ COPY requirements.txt .
 
 # Install PyTorch dependencies first
 RUN pip install --no-cache-dir --upgrade pip && \
-    pip install --no-cache-dir torch==2.5.1+cu118 torchvision==0.20.0+cu118 torchaudio==2.5.0+cu118 --extra-index-url https://download.pytorch.org/whl/cu118
+    pip install --no-cache-dir torch==2.5.0+cu118 torchvision==0.20.0+cu118 torchaudio==2.5.0+cu118 --extra-index-url https://download.pytorch.org/whl/cu118
 
 # Install remaining Python dependencies
 RUN grep -v "torch\|torchvision\|torchaudio" requirements.txt > requirements_no_torch.txt && \