umdns: update to Git HEAD (2025-05-29)

umdns: update to Git HEAD (2025-05-29)

263a0cb87b50 udebug: use proper libudebug API
ca9b8765aea3 dns: rework packet API
ea40cfdf7eb0 cache: send multiple queries in a single packet
d62813727e53 cache: add explicit lookup for host addresses
0ce73d80dc0c dns: add cache/queue for outgoing queries
083be33749b1 cache: improve service refresh behavior
55d0c1bc1ac5 interface: ask for unicast responses by default
ce508467a533 service: add support for setting service specific hostname
632953a1582d interface: when interface properties change, reinitialise
695ac3708aa0 ubus: fix ubus announcements txt fields
cecbe1c0caae Make mdns responder case-insensitive.
2b28094d31ca dns: add support for reverse address mapping queries

Signed-off-by: Felix Fietkau <[email protected]>