Upgrade HPU FW to 1.21; upgrade transformers to 4.51.3 (#608)

Signed-off-by: kaixuanliu <[email protected]>

Author: kaixuanliu

Dockerfile-intel

@@ -82,9 +82,10 @@ RUN python -m pip install torch==2.7.0 torchvision torchaudio==2.7.0 --index-url
 RUN cd backends/python/server && \
     make install
 
-FROM vault.habana.ai/gaudi-docker/1.19.0/ubuntu22.04/habanalabs/pytorch-installer-2.5.1:latest AS hpu
+FROM vault.habana.ai/gaudi-docker/1.21.0/ubuntu22.04/habanalabs/pytorch-installer-2.6.0:latest AS hpu
 ENV HUGGINGFACE_HUB_CACHE=/data \
     PORT=80
+ENV PT_HPU_LAZY_MODE=1
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
         build-essential \