feat(grouping): Add better support for native fingerprinting/grouping use-cases

[mujacica]

• Added support for fingerprinting based on the thread info
  thread.name:MainThread type:RuntimeError -> main-thread-error
thread.crashed:true -> crashed-thread

• Added support sibling matching for fingerprinting
  [ function:handler ] | function:process -> handler-process

• Added support for thread info in client-side fingerprinting
  Sentry.setFingerprint(["{{ thread.name }}", "{{ transaction }}"]);
sentry_sdk.set_fingerprint(["{{ thread.name }}", "database-error"])

• Added support for grouping based on the thread info

  • New Grouping config: newstyle:2025-with-threads
  • Thread name/ID can be used to contribute to grouping hash

[codecov]

Codecov Report

❌ Patch coverage is 89.61039% with 16 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/sentry/grouping/fingerprinting/matchers.py	78.57%	9 Missing ⚠️
src/sentry/grouping/fingerprinting/rules.py	86.84%	5 Missing ⚠️
src/sentry/grouping/fingerprinting/parser.py	91.30%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #102653      +/-   ##
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+ Coverage   80.55%    80.92%   +0.37%     
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  Files        8908      8906       -2     
  Lines      391108    391112       +4     
  Branches    24860     24860              
===========================================
+ Hits       315038    316496    +1458     
+ Misses      75682     74228    -1454     
  Partials      388       388