Support Xcode 26.2 / Swift 6.2

[swhitty]

Adds GitHub actions support for Xcode 26.2

Fixes Swift 6.2 warnings

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.29%. Comparing base (95c2fcb) to head (7c548b2).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #11   +/-   ##
=======================================
  Coverage   98.29%   98.29%           
=======================================
  Files           6        6           
  Lines         176      176           
=======================================
  Hits          173      173           
  Misses          3        3           

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.