odhcpd: update to Git HEAD (2025-10-26)

odhcpd: update to Git HEAD (2025-10-26)

fc27940fe993 dhcpv6: support a configurable DUID
ae16476bcad2 dhcpv6-ia: split reconf_msg struct into partial structs
a3bf57a39958 dhcpv6: split clientid to a separate struct
14da3727ac0c dhcpv6-ia: simplify/fix IID calculations
f49574e42e78 odhcpd: change "-c" cmd line arg to take a dir
0900202c2754 dhcpv4: dhcpv4_lease() - clarify which variables are requests
2c1e6e7c3ebf dhcpv4: dhcpv4_lease() - simplification
48487aedead8 dhcpv4: dhcpv4_lease() - convert to switch statement
3ad54baa4adc dhcpv4: dhcpv4_assign() - explain address assignment
fab8f67818e6 dhcpv6: send timezone only when client requests

https://github.com/openwrt/odhcpd/compare/0d0fac30075f...fc27940fe993

Fixes: 28bb40caafd8 ("odhcpd: update to Git HEAD (2025-10-22)")
Link: https://github.com/openwrt/openwrt/pull/20559
Signed-off-by: Álvaro Fernández Rojas <[email protected]>