WIP: try inproc with libunwind

[jpnurmi]

See:

• fix: split inproc handler thread sentry-native#1446
• vendor libunwind for Linux sentry-native#1523

[github-actions]

Semver Impact of This PR

⚪ None (no version bump detected)

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Dependencies ⬆️

Deps

• chore(deps): update Native SDK to v0.12.8 by github-actions in #4929
• Apps built using the Sentry SDK for .NET must now target iOS version 15 or higher. Previously only version 13 or higher was required. (#4781) by github-actions in #4781
• Bump Cocoa SDK from v8.57.3 to v9.2.0 (#4781) by github-actions in #4781
  • changelog
  • diff
• chore(deps): update Native SDK to v0.12.7 by github-actions in #4920

Other

• WIP: try inproc with libunwind by jpnurmi in #4926

• test(blazor): Add Playwright E2E tests for navigation breadcrumbs by bruno-garcia in #4908
• test(android): Use volatile to produce SIGSEGV in native crash test by jpnurmi in #4919

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[github-actions]

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## Unreleased

### Features

- try inproc with libunwind ([#4926](https://github.com/getsentry/sentry-dotnet/pull/4926))

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Generated by 🚫 dangerJS against 4e28780

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.88%. Comparing base (6a068c9) to head (4e28780).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4926      +/-   ##
==========================================
+ Coverage   73.86%   73.88%   +0.01%     
==========================================
  Files         496      496              
  Lines       17931    17931              
  Branches     3511     3511              
==========================================
+ Hits        13245    13248       +3     
+ Misses       3825     3823       -2     
+ Partials      861      860       -1     

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