fix(DataStore): watchOS subscription disabled configuration value

[lawmicha]

Issue #

Description

subscriptionsDisabled was incorrectly setting disableSubscriptions to return false. This wasn't caught since the developers tracking the original PR #3368 were using .custom(disableSubscriptions) as communicated to them. subscriptionDisabled is available as well and more targetted for customers that don't expect to change the disableSubscriptions return value.

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 https://github.com/aws-amplify/amplify-swift/actions/runs/7277517432
• 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-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (92ff97d) 67.93% compared to head (bc18487) 67.95%.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3432      +/-   ##
==========================================
+ Coverage   67.93%   67.95%   +0.01%     
==========================================
  Files        1086     1086              
  Lines       36294    36294              
==========================================
+ Hits        24657    24662       +5     
+ Misses      11637    11632       -5     

Flag	Coverage Δ
API_plugin_unit_test	67.07% <ø> (ø)
AWSPluginsCore	64.38% <ø> (ø)
Amplify	48.21% <ø> (ø)
Analytics_plugin_unit_test	81.16% <ø> (ø)
Auth_plugin_unit_test	79.13% <ø> (+0.04%)	⬆️
CoreMLPredictions_plugin_unit_test	59.44% <ø> (ø)
DataStore_plugin_unit_test	79.99% <ø> (ø)
Geo_plugin_unit_test	70.75% <ø> (ø)
Logging_plugin_unit_test	63.22% <ø> (ø)
Predictions_plugin_unit_test	37.29% <ø> (ø)
PushNotifications_plugin_unit_test	87.03% <ø> (ø)
Storage_plugin_unit_test	78.10% <ø> (ø)
unit_tests	67.95% <ø> (+0.01%)	⬆️

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