Pagination: add size to nested select (#11622)

packages/pagination/src/pagination.js

@@ -179,6 +179,7 @@ export default {
             <el-select
               value={ this.$parent.internalPageSize }
               popperClass={ this.$parent.popperClass || '' }
+              size="mini"
               on-input={ this.handleChange }
               disabled={ this.$parent.disabled }>
               {