package/samba4: security bump version to 4.15.13
Release notes:
https://www.samba.org/samba/history/samba-4.15.13.html
Fixes CVE-2022-37966, CVE-2022-37967, CVE-2022-38023 & CVE-2022-45141.
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 734cc8e951e899a88867feb83b0bf087a7d6b542)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>