galaxy.yml should describe dependencies

https://github.com/aristanetworks/ansible-cvp/blob/a3b7d8c857a0fdb2dd61e4eea1435f7a7455750f/ansible_collections/arista/cvp/galaxy.yml#L42

`galaxy.yml` should have the correct dependencies set.
From `collections.yml`:

```yml
collections:
  - arista.eos
  - ansible.netcommon
  - community.general
```