feat(auth): Add magic link API public definitions

[thisisabhash]

Issue #

None

Description

Add public API definitions for Sign in with Magiclink

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.

[harsh62]

Can you make sure the unit tests pass. This would mean

• Updating the Cognito plugin with no-op methods
• Updating the mocks..

This would just help us avoid any unforeseen errors in the future.

[codecov-commenter]

Codecov Report

Attention: 8 lines in your changes are missing coverage. Please review.

Comparison is base (7b507f3) 68.03% compared to head (fb49c66) 68.18%.

Files	Patch %	Lines
.../Categories/Auth/AuthCategory+ClientBehavior.swift	0.00%	4 Missing ⚠️
...Behavior/AWSCognitoAuthPlugin+ClientBehavior.swift	0.00%	4 Missing ⚠️

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Additional details and impacted files

@@                    Coverage Diff                     @@
##           feat/auth-passwordless    #3369      +/-   ##
==========================================================
+ Coverage                   68.03%   68.18%   +0.14%     
==========================================================
  Files                        1077     1077              
  Lines                       35959    35967       +8     
==========================================================
+ Hits                        24466    24523      +57     
+ Misses                      11493    11444      -49     

Flag	Coverage Δ
API_plugin_unit_test	67.07% <ø> (ø)
AWSPluginsCore	64.59% <ø> (ø)
Amplify	47.79% <0.00%> (-0.02%)	⬇️
Analytics_plugin_unit_test	81.16% <ø> (ø)
Auth_plugin_unit_test	79.46% <0.00%> (-0.14%)	⬇️
CoreMLPredictions_plugin_unit_test	59.44% <ø> (ø)
DataStore_plugin_unit_test	81.08% <ø> (+1.02%)	⬆️
Geo_plugin_unit_test	70.75% <ø> (ø)
Logging_plugin_unit_test	63.09% <ø> (ø)
Predictions_plugin_unit_test	37.29% <ø> (ø)
PushNotifications_plugin_unit_test	87.03% <ø> (ø)
Storage_plugin_unit_test	78.00% <ø> (ø)
unit_tests	68.18% <0.00%> (+0.14%)	⬆️

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