fix(standard-validator): fix hook's result type

[paihu]

fix type error

import { Hono } from "hono";
import { minLength, object, pipe,  string } from "valibot";

const createSchema = object({
  name: pipe(string(), minLength(3)),
});

const route = new Hono()
  .post(
    "/",
    sValidator("form", createSchema, (result, c) => {
      if (!result.success) {
        return c.json({ errors: result.error }, 400);  // <- type error
      }
    }),
    async (c) => {
      const { name } = c.req.valid("form");
      return c.json({name});
    }
  );

Property 'error' does not exist on type '({ success: boolean; data: { name: string; }; } | { success: boolean; error: readonly Issue[]; data: { name: string; }; }) & { target: "form"; }'.
  Property 'error' does not exist on type '{ success: boolean; data: { name: string; }; } & { target: "form"; }'

The author should do the following, if applicable

• Add tests
• Run tests
• yarn changeset at the top of this repo and push the changeset
• Follow the contribution guide

[changeset-bot]

🦋 Changeset detected

Latest commit: bc6b500

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@hono/standard-validator	Patch

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[yusukebe]

LGTM!

[yusukebe]

Hi @paihu

I added a test and formatted the code. Looks good! Thank you!