Merge pull request #549 from lightninglabs/group_witness_testing #74

Job	Run time
Format check	28s
cross compilation	9m 46s
Compilation check	1m 21s
Docker build check	2m 46s
run itests	8m 39s
run itests postgres	14m 8s
Lint check	3m 7s
go mod check	23s
RPC check	1m 10s
Sqlc check	29s
test vector check	1m 36s
run unit tests (unit-race)	5m 1s
run unit tests (unit-cover)	3m 39s
run unit tests (unit dbbackend=postgres)	5m 47s
	58m 20s

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