Bump actions/checkout from 6.0.0 to 6.0.2

Bump actions/setup-python from 6.1.0 to 6.2.0

Bump codecov/codecov-action from 5.5.1 to 5.5.2

Make black happy.

Add feature request template.

Release v6.0.1.

Require Python >= 3.10 (fixup).

Release v6.0.0.

Minor improvements from GitHub Copilot code review.

Convert setup.cfg to pyproject.toml.

Add support for Python 3.14.

Drop support for Python 3.9.

Bump codecov/codecov-action from 5.4.2 to 5.5.1

Bump actions/checkout from 4.2.2 to 6.0.0

Bump actions/setup-python from 5.6.0 to 6.1.0