feat(zod-openapi): support "status code"

[yusukebe]

This may fix #513
Fix #518

After merging this PR, you have to set the status code with c.json() even if it's 200.

app.openapi(
  route,
  (c) => {
    const { id } = c.req.valid('param')
    return c.json(
      {
        id,
        age: 20,
        name: 'Ultra-man',
      },
      200 // You should specify the status code even if it's 200.
    )
  },

[changeset-bot]

🦋 Changeset detected

Latest commit: 2dbac8b

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

This PR includes changesets to release 1 package

Name	Type
@hono/zod-openapi	Minor

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