Add bookworm to .gitlab-ci.yml and .pipeline/blubber.yaml.

Update some package versions in requirements.txt to work with
Bookworm.  The changes appear to work for Buster and Bullseye.

Depends-On: blubber!61
Bug: T346071
Change-Id: Idf0721e5d25f3773c9a0726b21a6176f49dfb991