[libxml2] Also clean *.pyc files for Python 2

[Nick Wellnhofer <nwellnhof src gnome org>]

commit b0916e0e96d9323f1cfe492e593df942ff927725
Author: Nick Wellnhofer <wellnhofer aevum de>
Date:   Fri Aug 26 17:57:58 2022 +0200

    Also clean *.pyc files for Python 2

 python/Makefile.am | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/python/Makefile.am b/python/Makefile.am
index cc1419a1..3184f33f 100644
--- a/python/Makefile.am
+++ b/python/Makefile.am
@@ -44,6 +44,6 @@ libxml2.py: $(srcdir)/libxml.py libxml2class.py
        cat $(srcdir)/libxml.py `test -f libxml2class.py || echo $(srcdir)/`libxml2class.py > $@
 
 clean-local:
-       rm -rf __pycache__
+       rm -rf __pycache__ *.pyc
 
 endif