[FIX] fastapi: save_http_session should invalidate routing

fastapi/models/fastapi_endpoint.py

@@ -124,7 +124,7 @@ def _registered_endpoint_rule_keys(self):
     def _routing_impacting_fields(self) -> Tuple[str]:
         """The list of fields requiring to refresh the mount point of the pp
         into odoo if modified"""
-        return ("root_path",)
+        return ("root_path", "save_http_session")
 
     #
     # end of endpoint.route.sync.mixin methods implementation