LU-19049 lutf: Debian 13: swig 4.3, python 3.13.3

LU-19049 lutf: Debian 13: swig 4.3, python 3.13.3

Update the config/ac_python_devel.m4 to handle distutils
being removed.

Handle swig 4.3 api change, SWIG_Python_AppendOutput() takes a
3rd argument 'is_null'

Signed-off-by: Shaun Tancheff <shaun.tancheff@hpe.com>
Change-Id: I35968b6928f682f5a70731e316db5e171fad00be
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/59401
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>
Reviewed-by: Yang Sheng <ys@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>