Traefik Docker labels on the outpost do not prompt for auth

## What

Traefik + Docker labels on the outpost: labels either do not prompt for auth or need to be set at outpost creation.

## Want

- Traefik + Docker labels on the outpost: labels either do not prompt for auth or need to be set at outpost creation

## Ideas this came from

- [#9825 Authentik + traefik labels doesn't promt for authentication.](https://github.com/goauthentik/authentik/issues/9825) — Describe your question/ I want to put some apps that don't provide authentication, behind the Authentik wall. So I've configured the provider, the app for the
- [#12362 Docker Labels in outpost creation to be used for traefik labels.](https://github.com/goauthentik/authentik/issues/12362) — Describe your question/ A clear and concise description of what you're trying to do. Creating a local docker proxy outpost. Trying to add traefik labels for aut

Start by reproducing the issue with Traefik Docker labels on an outpost, checking both labels supplied at creation and labels applied afterward. Done means an application without its own authentication prompts for Authentik authentication without requiring the labels during outpost creation.

Written by the indexing model from the issue text.