Functions which import from parent directory fail to deploy using api flag

[sweatybridge]

Describe the bug
#2533 (comment)

To Reproduce

1. Create supabase/functions/slug/index.ts

import "jsr:@supabase/functions-js/edge-runtime.d.ts";
import { handler } from "../../../../common/index.ts";

console.log("Hello from Functions!");

Deno.serve(handler);

2. Create ../common/index.ts

export const handler = async (req) => {
  const { name } = await req.json()
  const data = {
    message: `Hello ${name}!`,
  }

  return new Response(
    JSON.stringify(data),
    { headers: { "Content-Type": "application/json" } },
  )
}

3. Run supabase functions deploy --use-api and observe error

Uploading asset (update): supabase/functions/slug/index.ts
failed to read file: open ../common/index.ts: invalid argument
Try rerunning the command with --debug to troubleshoot the error.
exit status 1

Expected behavior
Deploying functions that import from parent directory should also work.

The current workaround is to use docker deploy.

System information

• Version of OS: macOS
• Version of CLI: v2.22.3

Additional context
Since our bundle API doesn't support parent directories, we have to change the working directory to the actual repo path rather than the current default of ../supabase. This will be a large refactor but also helps with setting more consistent paths in other places like the seed table.