Cannot deploy app with dependency on fly.io due to unused dependency

[hawkyre]

Bug Description

I can't deploy an app on fly.io due to the Bumblebee ModelLoader trying to create the cache directory when I don't even use Bumblebee. I've tried to modify the Dockerfile to give the user permissions but I wasn't able to, but the core issue is that it's trying to create something that I don't use. Would you be down to config whether bumblebee should be started or not? I can create the PR if needed.

Steps to Reproduce

Create an elixir app with this dependency and try to deploy it on fly.io

Environment

• ExLLM version: v0.8.1
• Elixir: 1.18.3
• Erlang: 27.3.4.1

Error Output

Additional Context

No response