switch to Python 3.12

Dockerfile.base

@@ -1,4 +1,4 @@
-ARG PYTHONTAG=3.11.11-slim-bookworm
+ARG PYTHONTAG=3.12.9-slim-bookworm
 FROM docker.io/python:${PYTHONTAG} AS base-upstream
 
 FROM base-upstream AS base-intermediate
@@ -241,7 +241,7 @@ RUN set -f ; \
     done
 
 ## "docker.io/python"-specific cleanup
-RUN rm -f /root/.wget-hsts
+RUN env -C /root rm -f .bash_history .python_history .wget-hsts
 
 RUN pip-env.sh pip list --format freeze \
     | grep -F '==' | awk -F= '{print $1}' \