Update dockerfile to python3.12 (#517)

update to python 3.12

Author: luke-kucing

Dockerfile

@@ -7,7 +7,7 @@ ARG NB_USER=notebook-user
 ARG NB_UID=1000
 ARG PIP_VERSION
 ARG PIPELINE_PACKAGE
-ARG PYTHON_VERSION="3.11"
+ARG PYTHON_VERSION="3.12"
 
 # Set up environment
 ENV PYTHON python${PYTHON_VERSION}