fixup! Disable caller as it's not necessary and generates slight delay.

monitoring/helpers.go

@@ -14,8 +14,8 @@ import (
 
 // Cache for sorted label keys to avoid repeated sorting
 var sortedLabelKeysCache = struct {
-	sync.RWMutex
 	m map[string][]string
+	sync.RWMutex
 }{m: make(map[string][]string)}
 
 func (ms *MetricsSetup) get_metrics_name(name string, labels map[string]string) string {

monitoring/helpers_test.go

@@ -167,9 +167,9 @@ func TestEnsureDefaultLabels(t *testing.T) {
 	libpack_config.PKG_NAME = "example_microservice"
 
 	tests := []struct {
-		name           string
 		inputLabels    map[string]string
 		expectedLabels map[string]string
+		name           string
 	}{
 		{
 			name:           "Nil labels",