Debian 13 (Trixie) test images

[reneleonhardt]

When will golang:trixie images be build to test compatibility before potential issues can't be raised anymore for the Full Freeze?
https://hub.docker.com/_/debian
https://release.debian.org/testing/freeze_policy.html

[tianon]

Similar to docker-library/python#1042 (comment), I'd be open to a draft PR, but not publishing/maintaining builds until GA.