[zod-openapi] Make range definitions available

[taku-hatano]

Hi team,

Following code occur type error.

export const route = createRoute({
	...
	responses: {
		200: {
			description: "Success",
			content: {
				"application/json": {
					schema: successSchema,
				},
			},
		},
		'4XX': {
			description: "Error",
			content: {
				"application/json": {
					schema: errorSchema,
				},
			},
		},
	},
});
...
app.openapi(route, (c) => {
	...
	return c.json(errorResponse, 400); // type error
})

I think this is because RouteConfigToTypedResponse support only StatusCode but OpenAPI support range definitions(like 4XX, 5XX).
ref. https://swagger.io/docs/specification/describing-responses/

So I suggest extract range definitions to StatusCode.

I will create PR, please check and please comment!