Is this gem EOL or still maintained?

There have been issues and comments regarding this ruby warning for many months with no response from maintainers. Is the Xero API team still supporting this library?

```
/ruby/3.4.6/lib/ruby/gems/3.4.0/gems/xero-ruby-12.0.0/lib/xero-ruby/models/files/association.rb:32: warning: redefining 'object_id' may cause serious problems
```