Tracker #32684: Ruby 3.0 support
Update roadie-rails to version 3 for Ruby 3 support
Currently we're using version 2.x while we need version 3 for formal Ruby 3 support.
Fixes #35448 - Update roadie-rails to 3.x
This has formal Ruby 3 support, even though there are no code
differences. It's a major version because it drops Ruby < 2.6.