Feature/xcode 16 and swift 6 fixes

[roanutil]

• Fix manifest for Xcode 16/Swift 6
• Require MockOutput conform to Sendable

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.62%. Comparing base (0125c10) to head (49e48b2).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #19      +/-   ##
==========================================
+ Coverage   74.85%   75.62%   +0.77%     
==========================================
  Files          24       24              
  Lines         684      517     -167     
==========================================
- Hits          512      391     -121     
+ Misses        172      126      -46     

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[r-jarvis]

@roanutil Was the goal of this PR to fix all Swift 6 strict concurrency warnings? I am getting a few Capture of 'scheduler' with non-sendable type 'T' in a '@Sendable' closure warnings as well as one Capture of 'mock' with non-sendable type 'MockNetworkService<AnySchedulerOf<DispatchQueue>>' in the tests.

Will approve if that wasn't the scope of this.

[roanutil]

@roanutil Was the goal of this PR to fix all Swift 6 strict concurrency warnings? I am getting a few Capture of 'scheduler' with non-sendable type 'T' in a '@Sendable' closure warnings as well as one Capture of 'mock' with non-sendable type 'MockNetworkService<AnySchedulerOf<DispatchQueue>>' in the tests.

Will approve if that wasn't the scope of this.

No, this PR is only to fix package resolution or build errors. There's still Sendability warnings