Addressing code review comments about boost::coroutine2

[pratikmankawde]

Details to come.

High Level Overview of Change

Context of Change

API Impact

• Public API: New feature (new methods and/or new fields)
• Public API: Breaking change (in general, breaking changes should only impact the next api_version)
• libxrpl change (any change that may affect libxrpl or dependents of libxrpl)
• Peer protocol change (must be backward compatible or bump the peer protocol version)

[pratikmankawde]

TSAN is inactive at the moment, so this is just to keep the profile consistent. This is a dead branch at the moment.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.8%. Comparing base (852fbe9) to head (cd3aa51).
⚠️ Report is 4 commits behind head on develop.

Additional details and impacted files

@@            Coverage Diff            @@
##           develop   #6977     +/-   ##
=========================================
+ Coverage     81.6%   81.8%   +0.2%     
=========================================
  Files         1010    1010             
  Lines        75992   76090     +98     
  Branches      7605    7530     -75     
=========================================
+ Hits         62002   62229    +227     
+ Misses       13990   13861    -129     

Files with missing lines	Coverage Δ
include/xrpl/core/Coro.ipp	100.0% <100.0%> (ø)

... and 11 files with indirect coverage changes

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[Copilot]

Pull request overview

This PR updates the codebase and build configuration to align with current Boost.Coroutine2 APIs and sanitizer-related Boost.Context build requirements.

Changes:

• Replace deprecated boost::coroutines2::asymmetric_coroutine usage with boost::coroutines2::coroutine in JobQueue::Coro.
• Centralize coroutine stack size into a named constant for clarity and reuse.
• Adjust build/config tooling: remove BOOST_COROUTINES2_NO_DEPRECATION_WARNING, remove an ASAN-specific Conan fPIC override, and add Boost.Context ucontext configuration for TSAN in the sanitizer profile.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
include/xrpl/core/Coro.ipp	Switch coroutine parameter type to boost::coroutines2::coroutine<void>::push_type and introduce a named stack-size constant.
conanfile.py	Removes ASAN-specific fPIC override (but leaves an inert SANITIZERS env check).
conan/profiles/sanitizers	Add TSAN-specific Boost.Context ucontext build flags for correct sanitizer annotations.
cmake/XrplInterface.cmake	Removes BOOST_COROUTINES2_NO_DEPRECATION_WARNING compile definition.

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