Cannot Upgrade to Version 2.0.0 Due to Omniauth Version

[jonmbake]

I am the maintainer of the plugin to add LDAP Authentication to Discourse. I have a dependency on omniauth-ldap 1.0.5 and am trying to update to 2.0.0.

However, I am getting the error:

`check_version_conflict': can't activate omniauth-1.8.1, already activated omniauth-1.6.1 (Gem::LoadError)

The reason being Discourse has a dependency on 1.6.1 and omniauth-ldap is dependent on '~> 1.8.1'

Would it be possible to update https://github.com/omniauth/omniauth-ldap/blob/master/omniauth-ldap.gemspec from gem.add_runtime_dependency 'omniauth', '~> 1.8.1' to gem.add_runtime_dependency 'omniauth', '>= 1.6.0'?