odhcpd: update to 25.12 Git HEAD (2026-03-16)

odhcpd: update to 25.12 Git HEAD (2026-03-16)

edf2e523b7ae odhcpd: ensure zero padding on DNSSL
61673cb67350 odhcpd: ignore NULL in dhcpv4_free_lease() stub
6a4fc65e911a ubus: fix truncated field in DHCPv6 lease query
2f4652a5c1ec dhcpv4: fix avl_delete on leases not in avl tree
b27273d99bdb dhcpv4: fix segfault when disabling interface
140d98b39752 dhcpv6-ia: dhcpv6_log_ia_addr(): parse return of snprintf

https://github.com/openwrt/odhcpd/compare/2e5068b97290...edf2e523b7ae

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/22455
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>