fix optional field

Author: giancarloromeo

packages/models-library/src/models_library/api_schemas_webserver/projects.py

@@ -78,7 +78,7 @@ class ProjectGet(OutputSchema):
     ui: EmptyModel | StudyUI | None = None
     quality: dict[str, Any] = {}
     dev: dict | None = None
-    permalink: ProjectPermalink = FieldNotRequired()
+    permalink: ProjectPermalink | None = FieldNotRequired()
     workspace_id: WorkspaceID | None = None
     folder_id: FolderID | None = None