select选择框为tags，选择数量超过maxTagCount后，出现的最后一个tag，hover时title展示真实隐藏的label

[chengjian1998]

• I have searched the issues of this repository and believe that this is not a duplicate.

What problem does this feature solve?

可以让tag， hover后展示的文字更有意义，而不是 {num}...

What does the proposed API look like?

os 版本：window10
浏览器版本：129.0.6668.101
Vue 版本：3.2.36

[chengjian1998]

已提交PR

[github-actions]

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