Drop support for Python <3.11

[sfc-gh-turbaszek]

Pre-review checklist

• [ ] I've confirmed that instructions included in README.md are still correct after my changes in the codebase.
• [ ] I've added or updated automated unit tests to verify correctness of my new code.
• [ ] I've added or updated integration tests to verify correctness of my new code.
• [ ] I've confirmed that my changes are working by executing CLI's commands manually.
• [ ] I've confirmed that my changes are up-to-date with the target branch.
• [ ] I've described my changes in the release notes.
• [ ] I've described my changes in the section below.

Changes description

Removes Python <3.11 from testing making 3.11 the minimal version we use for development.

[sfc-gh-astus]

MAybe add this info to release-notes?