Clean up config package

**What would you like to be added**:

Clean up / remove / refactor https://github.com/aws/eks-anywhere/tree/main/pkg/config with how it is being [used in the dependency factory](https://github.com/aws/eks-anywhere/blob/452b81a35f1d45f26219eac44d3895f2e76406a1/pkg/dependencies/factory.go#L23).

Rethink about the relationship between the cliConfig and dependency factory.

**Why is this needed**:

Start by reading the pkg/config package and the referenced code in pkg/dependencies/factory.go, then trace how cliConfig is passed into the dependency factory. The issue does not define a specific end state; completion would require an agreed relationship between these components and a corresponding cleanup or refactor.

Written by the indexing model from the issue text.