Maintenance: Add custom scope for GitLab third-party authentication.

config/initializers/omniauth.rb

@@ -35,6 +35,7 @@ Rails.application.config.middleware.use OmniAuth::Builder do
       authorize_url: '/oauth/authorize',
       token_url:     '/oauth/token'
     },
+    scope:          'read_user',
   }
 
   # microsoft_office365 database connect