Pydartz

Removed
- Remove Python 3.8 support.

Added
- Support Python 3.13.

Added
- Support Python 3.12.
Changed
- Update GitHub release action.

Changed
- Print score info at end of visit.

Fixed
- Prevent crash when reading from empty log file at very first invocation.
Removed
- Remove Python 3.7 support.

Added
- Fallback to using system media player if `simpleaudio` not available (configurable by environment variable `PYDARTZ_MEDIA_PLAYER`).
Removed
- Remove Python 3.6 support.