fn: fix linter issue #1633

Job	Run time
Docker build check	5m 41s
Compilation check	51s
cross compilation	13m 39s
Format check	27s
run itests	8m 13s
run itests postgres	11m 18s
Lint check	3m 58s
RPC check	1m 31s
Sqlc check	38s
go mod check	1m 4s
test vector check	1m 52s
run unit tests (unit-race)	8m 15s
run unit tests (unit-cover)	5m 48s
run unit tests (unit dbbackend=postgres)	5m 32s
	1h 8m 47s

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