fix(comp:select): pressing enter after chinese input

[sallerli1]

unexpected selection created after pressing enter key when input is in chinese and allowInput is enabled

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What is the current behavior?

allowInput开启时， 中文输入法下，直接按回车，有几率直接触发选择项的创建，此时输入的怕拼音字母内容会被保留显示，但实际为空

What is the new behavior?

修复以上问题

Other information

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[codecov]

Codecov Report

Merging #1611 (b6a0b88) into main (fdda882) will not change coverage.
The diff coverage is n/a.

❗ Current head b6a0b88 differs from pull request most recent head 28de503. Consider uploading reports for the commit 28de503 to get more accurate results

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  Lines       31542    31542           
  Branches     3602     3602           
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  Hits        29198    29198           
  Misses       2344     2344