odhcpd: update to Git HEAD (2025-12-10)

odhcpd: update to Git HEAD (2025-12-10)

ca00527e5fc3 statefiles: don't write empty hosts files
24b70c5c2ff0 Revert "statefiles: fix escape sequence for broken hostname output"
5203ad13954c statefiles: fix stale pio handling for !ubus
a64760b30f67 odhcpd: rename piofolder to piodir
6779344a8c8a statefiles: use tmpfile functions for pio files
9f8abcc662d0 statefiles: rename prefix information functions
cb65b83e524e config: move pio json handling to statefiles.c
5b01849cc42c statefiles: add a dirfd helper function
eadde3d7dd74 statefiles: add tmp helper functions
c29aa7091498 statefiles: fix escape sequence for broken hostname output
00f2d7a4dbe5 dhcpv4: don't send zero IPv6-only preferred option
c86d29bb83d6 Revert "dhcpv6-ia: add some noise to the T1 and T2 periods"
b062769ab85f Revert "do not delegate ULA prefixes"
fd4714bb2dfe do not delegate ULA prefixes
81ea5bfef775 dhcpv6-ia: add some noise to the T1 and T2 periods

https://github.com/openwrt/odhcpd/compare/79252ed0c0c2...ca00527e5fc3

Signed-off-by: Álvaro Fernández Rojas <[email protected]>