Release 0.2.13

Bug fixes

• Fix large unsigned conversions in from_json by @pengwyn in #57

Maintenance

• Add Python 3.10 to build matrix by @martinRenou in #55
• Fix deprecation warning in tests by @martinRenou in #56
• Update CI by @martinRenou in #58

New Contributors

• @pengwyn made their first contribution in #57

Full Changelog: 0.2.12...0.2.13