fix(weekly-report): filter to active teams for user projects

[JoshFerge]

I'm investigating #73594 and as part of that, we should filter out pending deletion team relations from the projects included in the email.

[codecov]

Codecov Report

Attention: Patch coverage is 78.57143% with 3 lines in your changes missing coverage. Please review.

⚠️ Parser warning

The parser emitted a warning. Please review your JUnit XML file:

Warning while parsing testcase attributes: Limit of string is 1000 chars, for name, we got 2083 at 1:157341 in /home/runner/work/sentry/sentry/.artifacts/pytest.junit.xml

Files with missing lines	Patch %	Lines
tests/sentry/tasks/test_weekly_reports.py	76.92%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #91997      +/-   ##
==========================================
- Coverage   87.62%   86.49%   -1.13%     
==========================================
  Files       10355    10356       +1     
  Lines      587429   587629     +200     
  Branches    22586    22586              
==========================================
- Hits       514723   508258    -6465     
- Misses      72279    78944    +6665     
  Partials      427      427