Run GC on PyPy more for test_worker_thread_context_not_leaked

[A5rocks]

Fixes #3478

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00000%. Comparing base (5249b54) to head (4c58840).

Additional details and impacted files

@@               Coverage Diff               @@
##                 main        #3479   +/-   ##
===============================================
  Coverage   100.00000%   100.00000%           
===============================================
  Files             128          128           
  Lines           19450        19450           
  Branches         1320         1321    +1     
===============================================
  Hits            19450        19450           

Files with missing lines	Coverage Δ
src/trio/_tests/test_threads.py	100.00000% <100.00000%> (ø)

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[EmmanuelNiyonshuti]

@A5rocks Sorry, I thought it would have no issue on PyPy. let me check again.

[A5rocks]

Yes if you have an Ubuntu (presumably kinda slow) machine and could check that this fixes the issue (ie repro w/o + unable to repro with) that would be great.

I'll start a bunch of CI runs in a while otherwise, which will hopefully just provide the same evidence.

[EmmanuelNiyonshuti]

Yes if you have an Ubuntu (presumably kinda slow) machine and could check that this fixes the issue (ie repro w/o + unable to repro with) that would be great.

I'll start a bunch of CI runs in a while otherwise, which will hopefully just provide the same evidence.

I think I have that; will try and see.

[EmmanuelNiyonshuti]

I am failing to reproduce its flakiness on my host.

[EmmanuelNiyonshuti]

I think this is better. I wasn't aware of trio's gc_collect_harder!