Can we cherry-pick this to 2.26 branch? https://github.com/pantsbuild/pants/pull/22406 because k8s and openapi-python backends are in the release notes, but not working cc @happy-kitchen-89482 @fast-nail-55400 PS thanks for fixing it

I had to manually back port to 2.26 and 2.25 as you found.

yep, thanks