fix(Select): correct clear icon position in sm size (ant-design#56525)

* fix(Select): correct clear icon position in sm size

* fix: add test case and use --select-padding-horizontal

* test(Select): move test case to clear icon position

* test(Select): remove unused test case

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Co-authored-by: 遇见同学 <1875694521@qq.com>

Author: QDyanbing

components/select/style/select-input.ts

@@ -231,6 +231,10 @@ const genSelectInputStyle: GenerateStyle<SelectToken> = (token) => {
           '--select-height': token.controlHeightSM,
           '--select-padding-horizontal': calc(token.paddingXS).sub(token.lineWidth).equal(),
           '--select-border-radius': token.borderRadiusSM,
+
+          [`${componentCls}-clear`]: {
+            insetInlineEnd: 'var(--select-padding-horizontal)',
+          },
         },
 
         '&-lg': {