Update version and changelog for upcoming v0.3.0 release.

[tdenewiler]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 29.01%. Comparing base (fad823c) to head (7e6a17a).
Report is 3 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main      #73       +/-   ##
===========================================
- Coverage   97.46%   29.01%   -68.45%     
===========================================
  Files           7        6        -1     
  Lines         276      224       -52     
===========================================
- Hits          269       65      -204     
- Misses          7      159      +152     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.