refactor: use makeStream for creating AsyncStream with continuation

[5d]

Issue #

Description

• use Swift 5.9 new API to create AsyncStream with contiuation, make code more predicatable

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

Attention: Patch coverage is 90.00000% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 68.57%. Comparing base (4156bfb) to head (81e9a2f).
Report is 2 commits behind head on main.

Files	Patch %	Lines
...l-state-machine-swift/CancellableAsyncStream.swift	83.33%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #3710    +/-   ##
========================================
  Coverage   68.56%   68.57%            
========================================
  Files        1096     1089     -7     
  Lines       38119    37645   -474     
========================================
- Hits        26138    25814   -324     
+ Misses      11981    11831   -150     

Flag	Coverage Δ
API_plugin_unit_test	68.97% <ø> (ø)
AWSPluginsCore	65.81% <ø> (ø)
Amplify	48.15% <100.00%> (-0.05%)	⬇️
Analytics_plugin_unit_test	84.52% <ø> (ø)
Auth_plugin_unit_test	79.31% <83.33%> (-0.19%)	⬇️
CoreMLPredictions_plugin_unit_test	?
DataStore_plugin_unit_test	82.32% <ø> (-0.11%)	⬇️
Geo_plugin_unit_test	72.00% <ø> (-1.50%)	⬇️
Logging_plugin_unit_test	62.87% <ø> (ø)
Predictions_plugin_unit_test	37.32% <ø> (ø)
PushNotifications_plugin_unit_test	86.21% <ø> (ø)
Storage_plugin_unit_test	76.75% <ø> (ø)
unit_tests	68.57% <90.00%> (+<0.01%)	⬆️

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