fix: Fixing the WebAuthn integration tests

[ruisebas]

Description

Fixing the WebAuthn integration tests

General Checklist

• Added new tests to cover change, if needed
• Build succeeds with all target using Swift Package Manager
• All unit tests pass
• All integration tests pass
  
• Security oriented best practices and standards are followed (e.g. using input sanitization, principle of least privilege, etc)
• Documentation update for the change if required
• PR title conforms to conventional commit style
• New or updated tests include Given When Then inline code documentation and are named accordingly testThing_condition_expectation()
• If breaking change, documentation/changelog update with migration instructions

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.72%. Comparing base (b31292a) to head (74a1839).
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3933      +/-   ##
==========================================
+ Coverage   67.68%   67.72%   +0.04%     
==========================================
  Files        1125     1125              
  Lines       52075    52075              
==========================================
+ Hits        35246    35269      +23     
+ Misses      16829    16806      -23     

Flag	Coverage Δ
API_plugin_unit_test	70.33% <ø> (ø)
AWSPluginsCore	70.36% <ø> (-0.04%)	⬇️
Amplify	47.89% <ø> (ø)
Analytics_plugin_unit_test	85.20% <ø> (ø)
Auth_plugin_unit_test	73.51% <ø> (+0.11%)	⬆️
DataStore_plugin_unit_test	83.45% <ø> (+0.06%)	⬆️
Geo_plugin_unit_test	74.86% <ø> (ø)
Logging_plugin_unit_test	63.11% <ø> (ø)
Predictions_plugin_unit_test	35.49% <ø> (ø)
PushNotifications_plugin_unit_test	88.43% <ø> (ø)
Storage_plugin_unit_test	76.88% <ø> (ø)
unit_tests	67.72% <ø> (+0.04%)	⬆️

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