ci: update codecov/codecov-action from 3 to 5

[inkydragon]

Close #15

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.66%. Comparing base (37de351) to head (0af18e8).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #14   +/-   ##
=======================================
  Coverage   86.66%   86.66%           
=======================================
  Files           3        3           
  Lines          75       75           
=======================================
  Hits           65       65           
  Misses         10       10           

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