This patch fixes an issue on mozperftest when running it with python 3.12+. It relates to a new parameter that has been added in python 3.13, and that does not exist in earlier versions (hence the version check). Differential Revision: https://phabricator.services.mozilla.com/D249070
=========== mozperftest =========== **mozperftest** can be used to run performance tests against browsers. See the docs directory.