I'm seeing non deterministic warnings in the following PRs, which are both attempts to bump some Python version used in CI

• TST: upgrade Allowed Failures job to CPython 3.14 #19435
• TST: upgrade Stable CI jobs to CPython 3.13 #19436
  While the exact failures are non deterministic (the exact number of warnings and the exact test appearing to emit them may vary), all my recent runs have hit at least one.

I think a possible solution would be reverting #17282
edit: nevermind, the warnings I'm seeing are slightly different