bugfix: connect-wordpress orchestration

- added missing configuration to wordpress service
  REALM_ID
  REGISTRATION_ID
  CLIENT_ID
  CLIENT_SECRET
  CLIENT_USERNAME
  CLIENT_PASSWORD
  SMARDIGO_AUTH_TOKEN_NAME
  SMARDIGO_AUTH_TOKEN_VALUE

roles/connect-realm/defaults/main.yml

@@ -35,8 +35,8 @@ current_realm_users_base: [
 ]
 current_realm_users_wordpress: [
   {
-    "username": "{{ connect_wordpress_buergerportal_username }}",
-    "password": "{{ connect_wordpress_buergerportal_password }}",
+    "username": "{{ connect_wordpress_buergerportal_username | default() }}",
+    "password": "{{ connect_wordpress_buergerportal_password | default() }}",
   }
 ]
 current_realm_users: >-