Fix goimports failing test

Signed-off-by: Noble Mittal <[email protected]>

go/logstats/logger_test.go

@@ -21,6 +21,7 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
+
 	"vitess.io/vitess/go/sqltypes"
 	querypb "vitess.io/vitess/go/vt/proto/query"
 )