Update dockerfile

Author: Ar-Ray-code

yolox_ros_cpp/docker/tensorrt/dockerfile

@@ -76,11 +76,11 @@ RUN apt update && \
     rm -rf /var/lib/apt/lists/* && \
     pip install -U pip && \
     pip install catkin_pkg && \
-    pip install empy && \
+    pip install empy==3.3.4 && \
     pip install lark && \
     python3 -m pip cache purge
 
 COPY ./ros_entrypoint.sh /ros_entrypoint.sh
 RUN echo "source /ros_entrypoint.sh" >> /root/.bashrc
 # ENTRYPOINT ["/ros_entrypoint.sh"]
-CMD ["bash"]
+CMD ["bash"]