Update Signpost and tracing API

[Kyle-Ye]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 15.43624% with 126 lines in your changes missing coverage. Please review.

Project coverage is 22.42%. Comparing base (74c4d2f) to head (de9a847).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
Sources/OpenSwiftUICore/Log/Signpost.swift	11.11%	88 Missing ⚠️
Sources/OpenSwiftUICore/Util/Tracing.swift	0.00%	30 Missing ⚠️
Sources/OpenSwiftUICore/Data/Update.swift	66.66%	6 Missing ⚠️
...iftUICore/Data/Environment/EnvironmentalView.swift	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #185      +/-   ##
==========================================
- Coverage   22.50%   22.42%   -0.08%     
==========================================
  Files         295      295              
  Lines       10873    10853      -20     
==========================================
- Hits         2447     2434      -13     
+ Misses       8426     8419       -7     

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