cleanup: Fix unsorted imports (#6047)

Imports should be sorted by Golang coding convention

Co-Authored-By: Nguyen Phuong An <AnNP@vn.fujitsu.com>
Signed-off-by: Kim Bao Long <longkb@vn.fujitsu.com>

Mirrored from https://github.com/envoyproxy/envoy @ eb11b28ceb174d491727195e121ee75159074245

test/build/go_build_test.go

@@ -4,17 +4,17 @@ import (
 	"testing"
 
 	_ "github.com/envoyproxy/data-plane-api/api/ads"
+	_ "github.com/envoyproxy/data-plane-api/api/als"
 	_ "github.com/envoyproxy/data-plane-api/api/bootstrap"
 	_ "github.com/envoyproxy/data-plane-api/api/cds"
 	_ "github.com/envoyproxy/data-plane-api/api/cert"
 	_ "github.com/envoyproxy/data-plane-api/api/eds"
 	_ "github.com/envoyproxy/data-plane-api/api/hds"
 	_ "github.com/envoyproxy/data-plane-api/api/lds"
+	_ "github.com/envoyproxy/data-plane-api/api/metrics_service"
 	_ "github.com/envoyproxy/data-plane-api/api/rds"
 	_ "github.com/envoyproxy/data-plane-api/api/rls"
 	_ "github.com/envoyproxy/data-plane-api/api/sds"
-	_ "github.com/envoyproxy/data-plane-api/api/als"
-	_ "github.com/envoyproxy/data-plane-api/api/metrics_service"
 	_ "github.com/envoyproxy/data-plane-api/api/trace_service"
 )