Fix macos pypy check

[blink1073]

Hopefully fix recent errors seen on the macos pypy check. cf https://foss.heptapod.net/pypy/pypy/-/issues/3314

[codecov-commenter]

Codecov Report

Merging #632 (bddb79f) into master (b51969f) will increase coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #632      +/-   ##
==========================================
+ Coverage   77.72%   77.76%   +0.03%     
==========================================
  Files         110      110              
  Lines       10444    10444              
  Branches     1415     1415              
==========================================
+ Hits         8118     8122       +4     
+ Misses       1925     1922       -3     
+ Partials      401      400       -1     

Impacted Files	Coverage Δ
jupyter_server/services/kernels/kernelmanager.py	83.17% <0.00%> (+1.26%)	⬆️

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