Fee bumping when fee estimation doesn't meet min relay fee #3466

Job	Run time
Format check	24s
Compilation check	43s
cross compilation	4m 27s
Docker build check	3m 45s
run itests	8m 48s
run itests postgres	16m 56s
migration version check	17s
Lint check	2m 32s
go mod check	22s
RPC check	1m 16s
run LiT tests	6m 8s
sample configuration check	36s
Sqlc check	32s
test vector check	46s
run unit tests (unit-race)	9m 27s
run unit tests (unit-cover)	2m 43s
run unit tests (unit dbbackend=postgres)	5m 47s
finish	8s
	1h 5m 37s

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