fix(text): set async thread flags for text filters

[Kyle-Ye]

Summary

• Set explicit async-thread flags for resolved text filters.
• Add the private dynamic text filter declaration with async-thread flags.

[tuist]

🛠️ Tuist Run Report 🛠️

Tests 🧪

Scheme	Status	Ran test modules	Commit
OpenSwiftUI	✅	7	08aabc39d

Builds 🔨

Scheme	Status	Duration	Commit
OpenSwiftUI	✅	40.1s	08aabc39d

[codecov]

Codecov Report

❌ Patch coverage is 0% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 33.66%. Comparing base (e35c421) to head (a1a11e2).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...ces/OpenSwiftUICore/View/Text/Text/Text+View.swift	0.00%	5 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1111   +/-   ##
=======================================
  Coverage   33.65%   33.66%           
=======================================
  Files         807      807           
  Lines       64608    64613    +5     
=======================================
+ Hits        21745    21751    +6     
+ Misses      42863    42862    -1     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.