[BUG] lxd.container_create doesn't create devices correctly

[goapunk]

Description
Creating a container with lxd.container_create with the devices= parameter will fail if a device is not of type disk.

Steps to Reproduce the behavior

1. Create a container with a proxy device:

salt-call lxd.container_create name="test" source="jammy/amd64" devices="{test_device: {type: proxy, connect: "tcp:127.0.0.1:9999", listen: "tcp:127.0.0.1:9998"}}"

2. Inspect the created container:

lxc config show test

3. Device wasn't created, instead error message is shown:

Passed invalid arguments: path must be given as parameter.

Expected behavior
Devices are correctly added to the container.

Versions Report
any from at least 3001

[goapunk]

I'll provide a PR with a fix later