GPU Capabilities in `docker-compose.yml` deploy

I find it strange that Rodan does not specify GPU capability in its Docker Compose file. There was also a lack of mentioning to install `nvidia-container-toolkit` when testing Rodan with GPU.

Related resource: https://docs.docker.com/compose/how-tos/gpu-support/

@homework36 forwarded me to this wiki page which helps a bunch!

https://github.com/DDMAL/Rodan/wiki/New-Production-with-Multiple-Instances-and-vGPU

---

Another strange discovery I found was that to test GPU Celery, I need to have `celery` service up and running, meaning on two different terminal sessions:
```sh
docker compose exec celery /run/start-celery
docker compose exec gpu-celery /run/start-celery
```

From https://github.com/DDMAL/Rodan/wiki/Working-on-Rodan:

"For Rodan core tasks (uploading/creating resources, creating diva, creating master tasks to distribute to the other celery queues, etc.)"

---

_Related to testing of Text Alignment https://github.com/DDMAL/Rodan/pull/1307_