Add tag v5.12.1

Add tag v5.10.3

Add tag v5.12.0

Add tag v5.11.0

Add tag v5.10.2

Patch because we had to yank 5.10 because the release branch was not …

…up to date

Add tag v5.9.0 for pypi

Clean: revert remaining rebase-noise files (75 files) to origin/main

up