chore: export async-validator RuleItem interface

packages/semi-ui/form/interface.ts

@@ -15,7 +15,7 @@ import { RadioProps } from '../radio/index';
 import { ErrorMessageProps, ReactFieldError as FieldError } from './errorMessage';
 import { LabelProps } from './label';
 
-export { FormState, FormApi, WithFieldOption };
+export { FormState, FormApi, WithFieldOption, RuleItem };
 
 export type CommonFieldProps = {
     /** Field is required (except Form. Checkbox within the Group, Form. Radio) */