fix(types): Use project_id field in UserOption.unset_value

[JoshFerge]

Summary

Change filter to use project_id instead of project since the model has a project_id field, not a project ForeignKey field.

Changes

• Update UserOption.unset_value() to use project_id in filter query
• Add proper type conversion for project parameter

Test plan

• Existing tests pass
• Mypy type checking passes

[codecov]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/sentry/users/models/user_option.py	0.00%	2 Missing ⚠️

❌ Your patch check has failed because the patch coverage (0.00%) is below the target coverage (50.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #103017      +/-   ##
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- Coverage   80.75%    80.64%   -0.11%     
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  Files        9145      9140       -5     
  Lines      395020    392794    -2226     
  Branches    24968     24968              
===========================================
- Hits       319002    316778    -2224     
+ Misses      75617     75615       -2     
  Partials      401       401