[custom channels]: update to unmerged release branch of lnd 0.18.4-beta #3182

Job	Run time
cross compilation	40s
Compilation check	3m 36s
Format check	2m 43s
Docker build check	2m 3s
run itests	5m 39s
Lint check	1m 32s
run itests postgres	7m 35s
migration version check	15s
go mod check	2m 42s
RPC check	57s
run LiT tests	10m 25s
sample configuration check	3m 25s
Sqlc check	2m 47s
test vector check	3m 35s
run unit tests (unit-race)	7m 31s
run unit tests (unit-cover)	5m 41s
run unit tests (unit dbbackend=postgres)	5m 19s
finish	5s
	1h 6m 30s

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