ISTWCMS-5334 Add private content viewer role for the existing site

uw_cfg_common.install

@@ -578,3 +578,13 @@ function uw_cfg_common_update_9102() {
     $webform->save();
   }
 }
+
+/**
+ * Add Private content viewer role for the existing site.
+ */
+function uw_cfg_common_update_9103() {
+  Role::create([
+    'id' => 'uw_role_private_content_viewer',
+    'label' => 'Private content viewer',
+  ])->save();
+}