Fix FTBFS with Python 3.13.

This solves issue #33.

Signed-off-by: François Andriot <albator78@libertysurf.fr>
(cherry picked from commit 9e0d473a4d)

acinclude.m4.in

@@ -4555,7 +4555,7 @@ fi
 
 AC_DEFUN([KDE_CHECK_PYTHON],
 [
-  for PYTHON_VER_TEST in 3.{12,11,10,9,8,7,6,5,4,3,2,1,0}; do
+  for PYTHON_VER_TEST in 3.{13,12,11,10,9,8,7,6,5,4,3,2,1,0}; do
     KDE_CHECK_PYTHON_INTERN("$PYTHON_VER_TEST")
     if test -n "$PYTHONLIB"; then
       break