message: fix(SwitchCell): add deprecation warning
diff: @@ -30,6 +30,12 @@ function SwitchCell(
  slots: DefaultSlots,
  ctx: RenderContext<SwitchCellProps>
  ) {
  + if (process.env.NODE_ENV !== 'production') {
  + console.warn(
  + '[Vant] "SwitchCell" component is deprecated, see: https://youzan.github.io/vant/#/zh-CN/switch-cell.'
  + );
  + }
  +
  return (
  <Cell
  center
  