package/libubox: bump version to git ecddb31dc3

This bump includes patches which add cmake4 compatibility.

json-c is now a mandatory dependency due to upstream commit:
https://git.openwrt.org/?p=project/libubox.git;a=commitdiff;h=b7acc8e6fd5e13611ad90a593e98f9589af4009a

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Julien Olivain <ju.o@free.fr>
8 files changed