Release stable version v20240309-stable

[github-actions]

Autogenerated changes

• Update CHANGELOG.md
• Update .env
  • Replace CONTROLLER_BASE_VERSION with 2024-03-08
  • Replace MANAGER_BASE_VERSION with v2.63.3
  • Replace latest with stable

Manual steps to provide new release v20240309-stable

• Navigate to https://github.com/slub/ocrd_kitodo/releases/new after PR is merged
• Choose a tag "v20240309-stable" and create this as new tag
• Choose target "stable"
• Release title "Stable Version "20240309" of the integration of OCR-D and Kitodo.Production"
• Copy changes of release from CHANGELOG.md to description

[bertsky]

I had to trigger the CI here manually. I hope the reason was merely that it was not enabled for PRs against stable.

[bertsky]

Closing, as the release action does not do the right thing ATM.