Release 3.2.0

[3.2.0] - 2026-06-16

Added

• Models to describe physical mail (Fjernpost).
• Function to send physical mail.

What's Changed

• Bumped version by @ghbm-itk in #20
• Feature/fysisk post by @ghbm-itk in #22
• Release/3.2.0 by @ghbm-itk in #23

Full Changelog: 3.1.0...3.2.0