use datagov saml2auth

[FuhuXia]

We have a few customization done on saml2auth. GSA/ckanext-saml2auth@ckan-2-11...ckan-2-11-datagov

[jbrown-xentity]

@FuhuXia it seems like we're indefinitely maintaining this fork. Should we standardize on a clear branch; say datagov? And then make that the default branch with branch protections? That way it's more clear when we go to the repository what we've actually deployed/using, instead of having to go to inventory and/or catalog to find the commit or branch that is being used...

[FuhuXia]

@FuhuXia it seems like we're indefinitely maintaining this fork. Should we standardize on a clear branch; say datagov? And then make that the default branch with branch protections? That way it's more clear when we go to the repository what we've actually deployed/using, instead of having to go to inventory and/or catalog to find the commit or branch that is being used...

We will, when catalog is on ckan 2.11 too.