skip CI on CODEOWNERS update

Author: picnixz

.github/workflows/reusable-change-detection.yml

@@ -83,7 +83,10 @@ jobs:
           # into the PR branch anyway.
           #
           # https://github.com/python/core-workflow/issues/373
-          git diff --name-only "origin/$GITHUB_BASE_REF.." | grep -qvE '(\.rst$|^Doc|^Misc|^\.pre-commit-config\.yaml$|\.ruff\.toml$|\.md$|mypy\.ini$)' && echo "run-tests=true" >> "$GITHUB_OUTPUT" || true
+          git diff --name-only "origin/$GITHUB_BASE_REF.." | grep -qvE    \
+              -e '(\.rst$|\.md$|^Doc|^Misc|^CODEOWNERS$)'                 \
+              -e '(^\.pre-commit-config\.yaml$|\.ruff\.toml$|mypy\.ini$)' \
+            && echo "run-tests=true" >> "$GITHUB_OUTPUT" || true
         fi
 
         # Check if we should run hypothesis tests