Fix typo in Lib/idlelib/idle_test/test_parenmatch.py (GH-93332) (#93340) Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu> (cherry picked from commit 4f195f9db168bfe3360607eb45ba8d9ac98506ec) Co-authored-by: luzpaz <luzpaz@users.noreply.github.com>