Drop Python 3.10 Support At Next Release

Python 3.10 will be EOL in less than a month at the time of writing this issue. Support should be dropped in the next release cut.

Start by locating the Python-version constraints and release or build configuration in the repository, then review CI and packaging checks that reference Python 3.10. Done means the next release no longer advertises or tests support for Python 3.10, while the remaining supported versions continue to pass.

Written by the indexing model from the issue text.