test_runner: add Date to the supported mock APIs

signed-off-by: Lucas Santos <lhs.santoss@gmail.com>
PR-URL: #48638
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Erick Wendel <erick.workspace@gmail.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: khaosdoctor