[#193] Use selfhosted image registry instead of Docker Hub

Existing AIO image tags referenced from our integration tests were
manually synced to git.frostfs.info prior to this change.

Signed-off-by: Vitaliy Potyarkin <v.potyarkin@yadro.com>

cmd/http-gw/integration_test.go

@@ -51,7 +51,7 @@ const (
 
 func TestIntegration(t *testing.T) {
 	rootCtx := context.Background()
-	aioImage := "truecloudlab/frostfs-aio:"
+	aioImage := "git.frostfs.info/truecloudlab/frostfs-aio:"
 	versions := []string{
 		"1.2.7",
 		"1.3.0",