We need to move the Gerrit container onto Trixie in order to get access
to its openjdk 21 packages. Before we do that it would be good to have a
sanity check that our trixie container images operate as expected with
less impactful services. The two statsd reporting container images for
haproxy and zookeeper have been selected for this purpose. Update them
to our trixie python3.12 image stack.
If this looks good we may do an irc bot or two next before finally
updating Gerrit.
Change-Id: I1341c3691fd14e491015c78ef8ec01578e086c24
13fa9568a5