Only fetch sequencer output after next_step()

src/main_osp.cc

@@ -374,9 +374,8 @@ namespace Heck::OSP {
                     ld::DaisySeed::PrintLine("16n: %i", clock_16n_current);
                 }
                 sequencer.next_step();
+                midi_from_sequencer();
             }
-
-            midi_from_sequencer();
             midi_from_uart();