fix(build): invalidate imageSpec cache

Author: alexey-igrychev

pkg/build/stage/image_spec.go

@@ -98,6 +98,7 @@ func (s *ImageSpecStage) PrepareImage(ctx context.Context, _ Conveyor, _ contain
 func (s *ImageSpecStage) GetDependencies(_ context.Context, _ Conveyor, _ container_backend.ContainerBackend, _, _ *StageImage, _ container_backend.BuildContextArchiver) (string, error) {
 	var args []string
 
+	args = append(args, "1")
 	args = append(args, s.imageSpec.Author)
 	args = append(args, fmt.Sprint(s.imageSpec.ClearHistory))