期望给select和select-v2的清空图标增加clear相关类名，方便样式覆盖

[dreamllq]

element-plus/packages/components/select/src/select.vue

Line 240 in 7773df6

:class="[nsSelect.e('caret'), nsSelect.e('icon')]"

[github-actions]

Hello @dreamllq, your issue has been closed because it does not conform to our issue requirements. Please use the Issue Helper to create an issue, thank you!

你好 @dreamllq，为了能够进行高效沟通，我们对 issue 有一定的格式要求，你的 issue 因为不符合要求而被自动关闭。你可以通过 issue 助手 来创建 issue 以方便我们定位错误。谢谢配合！

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

此 issue 已被自动锁定，因为关闭后没有任何近期活动。如果有相关 bug，请重新创建一个新 issue。