pre-commit is not needed to run tests.

--- black-25.1.0/test_requirements.txt.orig
+++ black-25.1.0/test_requirements.txt
@@ -1,5 +1,4 @@
 coverage >= 5.3
-pre-commit
 pytest >= 6.1.1
 pytest-xdist >= 3.0.2
 pytest-cov >= 4.1.0