v3.116

Main thing -- should fix deprecation warnings when run on Python 3.12

Note -- this makes period_start and period_end functions return aware datetimes, instead of naive

What's Changed

• Replace all uses of utcnow with tz-aware datetimes by @brandon-doist in #72
• Version 3.116 by @brandon-doist in #73

New Contributors

• @brandon-doist made their first contribution in #72

Full Changelog: v3.115...v3.116