Avoid pre-commit run failing in autodeps

[A5rocks]

Hopefully fix https://github.com/python-trio/trio/actions/runs/19806895827

We don't care if this fails, because we run it as CI later.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00000%. Comparing base (18fd1d4) to head (c557072).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@                 Coverage Diff                  @@
##                main        #3361         +/-   ##
====================================================
+ Coverage   99.87621%   100.00000%   +0.12378%     
====================================================
  Files            125          125                 
  Lines          19388        19388                 
  Branches        1319         1319                 
====================================================
+ Hits           19364        19388         +24     
+ Misses            23            0         -23     
+ Partials           1            0          -1     

see 3 files with indirect coverage changes

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