Release 1.0.3

What's Changed

• actions: bump to RalfG/[email protected] by @naufraghi in #23
• Add python 3.10 support by @naufraghi in #21
• Bump submodule tiny-AES-c by @naufraghi in #26
• version bump 1.0.3rc2 by @naufraghi in #27
• Bump version 1.0.3 final by @naufraghi in #28

Full Changelog: v1.0.2...v1.0.3