use move away to make sure limit switch it cleared before homing to t…

…he next limit switch

components/gantry/singleaxis/singleaxis.go

@@ -477,6 +477,7 @@ func (g *singleAxis) testLimit(ctx context.Context, pin int) (float64, error) {
 	// Short pause after stopping to increase the precision of the position of each limit switch
 	position, err := g.motor.Position(ctx, nil)
 	time.Sleep(250 * time.Millisecond)
+	g.moveAway(ctx, pin)
 	return position, err
 }