[custom channels]: enforce minimum amounts #3601

Job	Run time
Compilation check	4m 59s
cross compilation	15m 29s
Docker build check	3m 37s
Format check	2m 39s
run itests	13m 47s
run itests postgres	21m 37s
Lint check	6m 4s
migration version check	13s
go mod check	2m 35s
RPC check	3m 25s
run LiT tests	4m 22s
sample configuration check	3m 56s
Sqlc check	4m 53s
test vector check	4m 14s
run unit tests (unit-race)	11m 37s
run unit tests (unit-cover)	7m 5s
run unit tests (unit dbbackend=postgres)	6m 7s
finish	3s
	1h 56m 42s

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