Fix leaky usage of time machine

[michelletran-codecov]

This was leaking into other tests (other tests were using the wrong times).

Pulled this out from #729

Legal Boilerplate

Look, I get it. The entity doing business as "Sentry" was incorporated in the State of Delaware in 2015 as Functional Software, Inc. In 2022 this entity acquired Codecov and as result Sentry is going to need some rights from me in order to utilize my contributions in this PR. So here's the deal: I retain all rights, title and interest in and to my contributions, and by keeping this boilerplate intact I confirm that Sentry can use, modify, copy, and redistribute my contributions, under Sentry's choice of terms.

[Swatinem]

I believe sentry was using freezegun at some point, not sure if they migrated away from that, or to that, which provides a decorator for a function. Might be another alternative, but either is fine.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.03%. Comparing base (f701e3f) to head (89bf551).
Report is 3 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #832      +/-   ##
==========================================
- Coverage   98.03%   98.03%   -0.01%     
==========================================
  Files         442      442              
  Lines       36112    36104       -8     
==========================================
- Hits        35401    35393       -8     
  Misses        711      711              

Flag	Coverage Δ
integration	98.03% <100.00%> (-0.01%)	⬇️
unit	98.03% <100.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
NonTestCode	95.92% <ø> (ø)
OutsideTasks	98.02% <ø> (ø)

Files with missing lines	Coverage Δ
tasks/tests/unit/test_process_flakes.py	98.52% <100.00%> (-0.03%)	⬇️
...sks/tests/unit/test_test_results_processor_task.py	100.00% <100.00%> (ø)

[codecov-qa]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.03%. Comparing base (f701e3f) to head (89bf551).
Report is 3 commits behind head on main.

✅ All tests successful. No failed tests found.

@@            Coverage Diff             @@
##             main     #832      +/-   ##
==========================================
- Coverage   98.03%   98.03%   -0.01%     
==========================================
  Files         442      442              
  Lines       36112    36104       -8     
==========================================
- Hits        35401    35393       -8     
  Misses        711      711              

Flag	Coverage Δ
integration	98.03% <100.00%> (-0.01%)	⬇️
unit	98.03% <100.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
NonTestCode	95.92% <ø> (ø)
OutsideTasks	98.02% <ø> (ø)

Files with missing lines	Coverage Δ
tasks/tests/unit/test_process_flakes.py	98.52% <100.00%> (-0.03%)	⬇️
...sks/tests/unit/test_test_results_processor_task.py	100.00% <100.00%> (ø)

[codecov-notifications]

Codecov Report

All modified and coverable lines are covered by tests ✅

✅ All tests successful. No failed tests found.

@@            Coverage Diff             @@
##             main     #832      +/-   ##
==========================================
- Coverage   98.03%   98.03%   -0.01%     
==========================================
  Files         442      442              
  Lines       36112    36104       -8     
==========================================
- Hits        35401    35393       -8     
  Misses        711      711              

Flag	Coverage Δ
integration	98.03% <100.00%> (-0.01%)	⬇️
unit	98.03% <100.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
NonTestCode	95.92% <ø> (ø)
OutsideTasks	98.02% <ø> (ø)

Files with missing lines	Coverage Δ
tasks/tests/unit/test_process_flakes.py	98.52% <100.00%> (-0.03%)	⬇️
...sks/tests/unit/test_test_results_processor_task.py	100.00% <100.00%> (ø)

[codecov-public-qa]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.03%. Comparing base (f701e3f) to head (89bf551).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

@@            Coverage Diff             @@
##             main     #832      +/-   ##
==========================================
- Coverage   98.03%   98.03%   -0.01%     
==========================================
  Files         442      442              
  Lines       36112    36104       -8     
==========================================
- Hits        35401    35393       -8     
  Misses        711      711              

Flag	Coverage Δ
integration	98.03% <100.00%> (-0.01%)	⬇️
unit	98.03% <100.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
NonTestCode	95.92% <ø> (ø)
OutsideTasks	98.02% <ø> (ø)

Files	Coverage Δ
tasks/tests/unit/test_process_flakes.py	98.52% <100.00%> (-0.03%)	⬇️
...sks/tests/unit/test_test_results_processor_task.py	100.00% <100.00%> (ø)