Update trigger_precommit.yml

[blink1073]

We were using the base python, we need to check out a user-space Python.

[codecov-commenter]

Codecov Report

Merging #687 (38764f8) into main (8190db9) will increase coverage by 0.12%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #687      +/-   ##
==========================================
+ Coverage   77.73%   77.85%   +0.12%     
==========================================
  Files         110      110              
  Lines       10465    10465              
  Branches     1405     1405              
==========================================
+ Hits         8135     8148      +13     
+ Misses       1933     1922      -11     
+ Partials      397      395       -2     

Impacted Files	Coverage Δ
jupyter_server/serverapp.py	65.50% <0.00%> (+0.18%)	⬆️
...ter_server/tests/services/contents/test_manager.py	96.95% <0.00%> (+0.23%)	⬆️
jupyter_server/services/contents/filemanager.py	70.22% <0.00%> (+0.80%)	⬆️
jupyter_server/services/kernels/kernelmanager.py	82.53% <0.00%> (+1.90%)	⬆️

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