Use new Interlocked.Exchange/CompareExchange overloads that support bool values

[logiclrd]

This PR updates places that use Interlocked.Exchange and/or Interlocked.CompareExchange with int values that are really booleans because, historically, the type bool wasn't supported to use the new overloads in .NET 9.0+ that do support bool. As the code has targets older than .NET 9.0, these are all used conditionally, with fallback to int on older platforms. Constants named TRUE and FALSE are used, tracking the actual type of the backing field, so that the actual code doesn't need separate implementations.

Closes: #3686

[logiclrd]

If you accept this, please consider adding the hacktoberfest-accepted label to the PR (or the hacktoberfest topic to the repository as a whole). 😸

[codecov]

Codecov Report

❌ Patch coverage is 85.71429% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.48%. Comparing base (c4fe48f) to head (34bec13).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
src/Sentry.Profiling/SampleProfilerSession.cs	50.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4585      +/-   ##
==========================================
- Coverage   73.48%   73.48%   -0.01%     
==========================================
  Files         482      482              
  Lines       17679    17680       +1     
  Branches     3495     3493       -2     
==========================================
  Hits        12992    12992              
- Misses       3797     3799       +2     
+ Partials      890      889       -1     

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[logiclrd]

Rebased to resolve merge conflict in CHANGELOG.md.