Release v0.22.0

What's Changed

• fix: unknown prefix error by @Fr0gN in #312
• track 2 spec added by @wisely11 in #314
• Return subfields in unpack error by @meparle in #313

Breaking change

The UnpackError and PackError were moved into their own errors package. If you use them, you will have to update the import path.

New Contributors

• @Fr0gN made their first contribution in #312
• @wisely11 made their first contribution in #314

Full Changelog: v0.21.3...v0.22.0