dev: eliminate redundant indentation

[alexandear]

revive is already included in .golangci.yaml. This PR only enables one revive's rule:

Updated 1 path from the index
❯ golangci-lint run
pkg/lint/lintersdb/builder_plugin_go.go:51:10: indent-error-flow: if block ends with a return statement, so drop this else and outdent its block (revive)
                } else {
                        linters = append(linters, lc)
                }