Merge branch 'chore/pin-python-version' into staging

Author: helenb

Dockerfile

@@ -16,7 +16,8 @@ RUN npm run build:prod
 # ones becase they use a different C compiler. Debian images also come with
 # all useful packages required for image manipulation out of the box. They
 # however weight a lot, approx. up to 1.5GiB per built image.
-FROM python:3.13 as production
+# Pinned to a particlar version as requested by support team 6/10/25
+FROM python:3.13-bookworm as production
 
 ARG POETRY_INSTALL_ARGS="--no-dev"