Support group keys on `SendPayment` & `AddInvoice` #4051

Job	Run time
Format check	18s
Docker build check	3m 58s
cross compilation	12m 47s
Compilation check	1m 0s
run itests	10m 0s
run itests postgres	3m 6s
Lint check	2m 49s
migration version check	11s
go mod check	22s
run LiT tests	16m 33s
RPC check	1m 3s
sample configuration check	41s
Sqlc check	40s
test vector check	1m 1s
run unit tests (unit-race)	15m 55s
run unit tests (unit-cover)	2m 11s
run unit tests (unit dbbackend=postgres)	6m 3s
finish	4s
	1h 18m 42s

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