Fix linting issues

Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com>

Author: Arthur Silva Sens

expfmt/openmetrics_create.go

@@ -22,9 +22,10 @@ import (
 "strconv"
 "strings"
 
-"github.com/prometheus/common/model"
 "google.golang.org/protobuf/types/known/timestamppb"
 
+"github.com/prometheus/common/model"
+
 dto "github.com/prometheus/client_model/go"
 )
 

expfmt/openmetrics_create_test.go

@@ -32,7 +32,7 @@ func TestCreateOpenMetrics(t *testing.T) {
 t.Error(err)
 }
 
-var scenarios = []struct {
+scenarios := []struct {
 in *dto.MetricFamily
 options []ToOpenMetricsOption
 out string
@@ -543,7 +543,7 @@ foos_created 12345.6
 Help: proto.String("Number of foos."),
 Type: dto.MetricType_COUNTER.Enum(),
 Metric: []*dto.Metric{
-&dto.Metric{
+{
 Counter: &dto.Counter{
 Value: proto.Float64(42),
 CreatedTimestamp: openMetricsTimestamp,