add support for api gateway v1

[wingleung]

the current implementation of @remix-run/architect assumes we run on an API Gateway V2 (http api) however the v2 is much more limited compared to v1. So it would be nice if v1 was supported too.

proposal

// index.ts in your remix app
import { createRequestHandler } from '@remix-run/architect'
import * as build from '@remix-run/dev/server-build'

export const handler = createRequestHandler({
    build,
    mode: process.env.NODE_ENV,
    apiGatewayVersion: 2    // <- new config to choose the api gateway version
})

[wingleung]

kickstarting PR 👉 #3173