fix imports

Author: mauri870

x-pack/filebeat/fbreceiver/receiver_leak_test.go

@@ -12,6 +12,7 @@ import (
 	"time"
 
 	"github.com/elastic/beats/v7/x-pack/otel/oteltest"
+
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"go.opentelemetry.io/collector/component"