Make :name argument optional in Folio::Library

[corylown]

Fixes #1877

When we instantiate Folio::Library with data from the FOLIO API (FolioClient.new.find_instance_by(hrid: 'a3978751')) the library information on the item contains only an :id and a :code so :name needs to be optional.

[jcoyne]

@corylown what does that mean? How is it at a nameless library?

[corylown]

@jcoyne the library data we get back from FOLIO that's included in an instance record's item metadata contains only an id and a code: "library"=> {"id"=>"f6b5519e-88d9-413e-924d-9ed96255f72e", "code"=>"GREEN"}. I think that's all that's needed in this case to validate the request type.

You can trace the calls from here: https://github.com/sul-dlss/sul-requests/blob/main/app/models/folio/instance.rb#L12 where the app passes instance record data down to Folio::Item, Folio::Location, then Folio::Library.