fix URL type after starlette update

Author: vincentsarago

tipg/factory.py

@@ -162,7 +162,7 @@ def url_for(self, request: Request, name: str, **path_params: Any) -> str:
         if self.router_prefix:
             base_url += self.router_prefix.lstrip("/")
 
-        return url_path.make_absolute_url(base_url=base_url)
+        return str(url_path.make_absolute_url(base_url=base_url))
 
     def _create_html_response(
         self,
@@ -238,13 +238,13 @@ def landing(
                     ),
                     model.Link(
                         title="the API definition (JSON)",
-                        href=request.url_for("openapi"),
+                        href=str(request.url_for("openapi")),
                         type=MediaType.openapi30_json,
                         rel="service-desc",
                     ),
                     model.Link(
                         title="the API documentation",
-                        href=request.url_for("swagger_ui_html"),
+                        href=str(request.url_for("swagger_ui_html")),
                         type=MediaType.html,
                         rel="service-doc",
                     ),