feat(auth): Refresh Token Rotation

[ekjotmultani]

Changed InitiateAuth API for refreshing Cognito User Pool tokens to the new GetTokensFromRefreshToken API which enables a user to rotate their refresh token if they have the feature enabled

Additionally updated the AWS Swift SDK version which fixed a bug in this API

Issue #

#4027

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

❌ Patch coverage is 88.88889% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 67.93%. Comparing base (1e24d45) to head (9b92f80).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...zationSession/UserPool/RefreshUserPoolTokens.swift	88.88%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #4050       +/-   ##
===========================================
- Coverage   78.61%   67.93%   -10.69%     
===========================================
  Files         211     1129      +918     
  Lines       14188    52473    +38285     
===========================================
+ Hits        11154    35647    +24493     
- Misses       3034    16826    +13792     

Flag	Coverage Δ
API_plugin_unit_test	70.33% <ø> (?)
AWSPluginsCore	69.25% <ø> (ø)
Amplify	47.93% <ø> (?)
Analytics_plugin_unit_test	85.20% <ø> (ø)
Auth_plugin_unit_test	73.59% <88.88%> (?)
DataStore_plugin_unit_test	84.23% <ø> (+0.80%)	⬆️
Geo_plugin_unit_test	74.86% <ø> (ø)
Logging_plugin_unit_test	65.27% <ø> (ø)
Predictions_plugin_unit_test	34.77% <ø> (?)
PushNotifications_plugin_unit_test	88.43% <ø> (?)
Storage_plugin_unit_test	79.39% <ø> (?)
unit_tests	67.93% <88.88%> (-10.69%)	⬇️

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[harsh62]

LGTM