chore: update pre-commit comment to reference ruff

The pre-commit config has been modernized to use ruff instead of
flake8. Update the SKIP example comment accordingly.

Closes #1271

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: dimitri-yatsenko

.pre-commit-config.yaml

@@ -1,8 +1,7 @@
-# pip install datajoint[test]
 # pre-commit install
 # pre-commit run --all-files
 # pre-commit autoupdate
-# SKIP=flake8 git commit -m "foo"
+# SKIP=ruff git commit -m "foo"
 
 # See https://pre-commit.com for more information
 # See https://pre-commit.com/hooks.html for more hooks