(SERVER-2551) Add auth.conf rule for `expirations` CA endpoint
(SERVER-2551) Add auth.conf rule for `expirations` CA endpoint

The rule allows any authorized client to query the endpoint.

puppetlabs/puppet-server,puppetlabs/puppet-server,puppetlabs/puppetserver,puppetlabs/puppet-server,puppetlabs/puppetserver,puppetlabs/puppetserver,puppetlabs/puppetserver