chore: Upgrade webdriver to v9.28.0

[jperals]

It addresses the hangups issue with Node 24.16: https://github.com/webdriverio/webdriverio/releases/tag/v9.28.0

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.19%. Comparing base (a6236fa) to head (dbb1fdf).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #223   +/-   ##
=======================================
  Coverage   92.19%   92.19%           
=======================================
  Files          18       18           
  Lines         423      423           
  Branches       69       69           
=======================================
  Hits          390      390           
  Misses         29       29           
  Partials        4        4           

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