fix(cli): restore Edge Function docker bundling

[7ttp]

TL;DR

docker-based deploys could finish bundling and then fail with failed to open eszip: ENOENT ... output.eszip
the Go CLI wrote bundle output to project-local supabase/.temp

but the TypeScript port moved it to the host OS temporary directory
typically under /var/folders/..., which may not be shared with Docker Desktop's VM

this restores the Go CLI's project local output behavior while retaining unique bundle directories & cleanup...

ref:

• towards: Edge functions deployment failure in Supabase CLI new version #5735
• follow up to:
  fix(cli): function deploy paths #5755
  fix(cli): eszip error #5747

[github-actions]

👋 Thanks for the contribution! This pull request isn't linked to a tracked issue, so it's being closed automatically.

Please open an issue first, wait for a maintainer to add the open-for-contribution label, then open a pull request that links the issue with a closing keyword (e.g. Closes #123).
See CONTRIBUTING.md for the full workflow. Once a maintainer adds the open-for-contribution label to a linked open issue, reopen or open a new pull request and it will be accepted.