odhcpd: update to Git HEAD (2025-12-01)

odhcpd: update to Git HEAD (2025-12-01)

338ca8abb950 dhcpv4: support IPv6-only preferred (RFC8925)
7336992e6866 dhcpv6-ia: fix a crash when static lease isn't configured
a170d63874f2 src: fix shadowed local variables
90f503fc7ca6 ubus: fix shadow local variable
ef8de928da7f build: enable DHCPV4_SUPPORT and UBUS
def8adea9e6c statefiles: remove hosts entries from statefile
e568bde96e9f odhcpd: remove OAF_BROKEN_HOSTNAME
1fe60e14e468 odhcpd: remove OAF_STATIC
9ae348c07ce0 dhcpv6: remove OAF_TENTATIVE
d0e6bc4d1cc2 odhcpd: remove OAF_BOUND
7fddd3916664 statefiles: change ipv4 MAC statefile syntax
bb2da6dcb58d build: fix BUILD_ARGS
94ef124f726e dhcpv6-ia: fix crash in dhcpv6_free_lease()
6fbd70c08342 build: disable static libraries

https://github.com/openwrt/odhcpd/compare/d21e504b38ab...6fbd70c08342

Signed-off-by: Goetz Goerisch <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/21009
Signed-off-by: Álvaro Fernández Rojas <[email protected]>