[Bug?]: `getAuthProviderHeader` does not support getting headers from a plain `Request` object

[cdubz]

What's not working?

The current definition of getAuthProviderHeader says it supports getting the auth provider header from a APIGatewayProxyEvent or Request:

export const getAuthProviderHeader = (
  event: APIGatewayProxyEvent | Request,
) => {

This works as expected for APIGatewayProxyEvent, but not for Request.

How do we reproduce the bug?

import { getAuthProviderHeader } from '@redwoodjs/api'

const testRequest = new Request('https://redwoodjs.com/')
testRequest.headers.append('auth-provider', 'test')
const authProvider = getAuthProviderHeader(request))

In the above example, authProvider should be test, but it is undefined.

What's your environment? (If it applies)

System:
    OS: Linux 6.10 Debian GNU/Linux 11 (bullseye) 11 (bullseye)
    Shell: 5.1.4 - /bin/bash
  Binaries:
    Node: 20.14.0 - /tmp/xfs-54a3a8c7/node
    Yarn: 4.4.0 - /tmp/xfs-54a3a8c7/yarn
  npmPackages:
    @redwoodjs/auth-dbauth-setup: 8.3.0 => 8.3.0 
    @redwoodjs/cli-data-migrate: 8.3.0 => 8.3.0 
    @redwoodjs/cli-storybook-vite: 8.3.0 => 8.3.0 
    @redwoodjs/core: 8.3.0 => 8.3.0 
    @redwoodjs/realtime: 8.3.0 => 8.3.0 
    @redwoodjs/studio: 12.0.0 => 12.0.0 
  redwood.toml:
    [api]
    port = 8911
    [browser]
    open = false
    [experimental.opentelemetry]
    enabled = false
    [notifications]
    versionUpdates = ["latest"]
    [studio.graphiql.authImpersonation]
    authProvider = "dbAuth"
    email = "${AUTH_IMPERSONATION_USER_EMAIL}"
    userId = "${AUTH_IMPERSONATION_USER_ID}"
    [web]
    title = "Local Public"
    port = 8910
    apiUrl = "${REDWOOD_API_URL}"
    sourceMap = true
    includeEnvironmentVariables = [
      "APP_ENV",
      "CLOUDFLARE_IMAGES_URL",
      "PBS_OAUTH_BASE_URL",
      "PBS_OAUTH_CLIENT_ID",
      "PUBLIC_API_URL",
      "SENTRY_DSN",
    ]

Are you interested in working on this?

• [X] I'm interested in working on this