Add db/user seeds

Gemfile.lock

@@ -117,6 +117,8 @@ GEM
     factory_bot_rails (6.2.0)
       factory_bot (~> 6.2.0)
       railties (>= 5.0.0)
+    faker (3.0.0)
+      i18n (>= 1.8.11, < 2)
     faraday (2.7.1)
       faraday-net_http (>= 2.0, < 3.1)
       ruby2_keywords (>= 0.0.4)
@@ -313,6 +315,7 @@ DEPENDENCIES
   devise_ldap_authenticatable
   dotenv-rails
   factory_bot_rails
+  faker
   faraday
   importmap-rails
   jbuilder (~> 2.7)