[investigate] Flaky tests on setup_all ?

[Lucassifoni]

https://github.com/sheerlox/nodelix/actions/runs/12711407255

?????

  0) NodelixTest: failure on setup_all callback, all tests have been invalidated
     ** (File.Error) could not remove files and directories recursively from "/home/runner/work/nodelix/nodelix/_build/test/nodejs": file already exists
     stacktrace:
       (elixir 1.14.5) lib/file.ex:1339: File.rm_rf!/1
       test/nodelix_test.exs:7: NodelixTest.__ex_unit_setup_all_0/1
       test/nodelix_test.exs:1: NodelixTest.__ex_unit__/2

I also got this one in dev, I'll try and fix it.

[sheerlox]

Weird, I can't reproduce it locally

[Lucassifoni]

I get it around ~20% of the time. I'll try to get a PR on that.