chore: add test verifying PnP works

[SimenB]

Summary

From #11493 - I'm unable to make this test work properly...

Test plan

Green CI? 😀

[merceyz]

I cloned the repo and ran the test and something interesting is going on... it spawned 1600 processes before the system ran out of resources, froze, and had to be force restarted. Is that what you meant by it doesn't work?

[codecov-commenter]

Codecov Report

Merging #11513 (de9e27e) into master (d6fb0d8) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #11513   +/-   ##
=======================================
  Coverage   68.93%   68.94%           
=======================================
  Files         312      312           
  Lines       16314    16314           
  Branches     4726     4726           
=======================================
+ Hits        11246    11247    +1     
+ Misses       5040     5039    -1     
  Partials       28       28           

Impacted Files	Coverage Δ
packages/expect/src/utils.ts	96.13% <0.00%> (+0.55%)	⬆️

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[SimenB]

Auch! Sorry about that 😬 Probably the require('jest/bin/jest') thing at the bottom, I haven't actually tested that one, just had it lying around locally...

[SimenB]

Pushed a commit which fails due to missing binary. Changing the link to portal and uncommenting the resolutions gives another error. I'm not sure what the best approach is?

[merceyz]

Probably the require('jest/bin/jest') thing at the bottom

It's interesting because going to the temp directory and running yarn node -e "require('jest/bin/jest')" manually works just fine

[SimenB]

I've also verified the test fails with #11493 reverted. Thanks for the help @merceyz!

[github-actions]

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