feat(perforce): Add backend support for Perforce integration

[mujacica]

This commit adds backend support for Perforce version control integration:

• New Perforce integration with P4 client support
• Installation logic
• Tests for integration

Requires: #103287

[cathteng]

This PR is 2500 lines -- would it possible to split it up for review? There are aspects that should be reviewed by different teams like dependencies, specific features, etc

[mujacica]

Hey @cathteng, I extracted the stubs/generic code/dependencies into another PR: #103287

This one now contains only perforce-related logic and tests (note that 70% of the lines in the PR now are coming from the tests themselves).

[codecov]

Codecov Report

❌ Patch coverage is 10.88710% with 221 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/sentry/integrations/perforce/integration.py	13.38%	123 Missing ⚠️
src/sentry/integrations/perforce/client.py	7.54%	98 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #103171      +/-   ##
===========================================
- Coverage   80.59%    80.54%   -0.06%     
===========================================
  Files        9297      9297              
  Lines      396850    397078     +228     
  Branches    25281     25281              
===========================================
- Hits       319839    319809      -30     
- Misses      76551     76809     +258     
  Partials      460       460              

[Christinarlong]

Could we break this PR down more to be on the feature level? This PR is still pretty insane to review and push out at once since there's like 4-5 features here. Maybe something like

• integration installation & authentication ?
• stacktrace linking
• repository management
• releases/commit tracking
• suspect commits