Authentication providers: no token_bearer
I think your yml syntax is wrong (or out-dated) look at rest.resource.entity.node.yml for a correct example.
Or use the "REST UI" module to specify your resources.

It should look more like:

configuration:
  methods:
    - GET
    - POST
    - PATCH
    - DELETE
  formats:
    - hal_json
  authentication:
    - basic_auth