This sound effect can be found on Sonothèque, which was made by Auvidis Tempo.
https://soundeffects.fandom.com/wiki/File:Auvidis_Tempo,_Arriv%C3%A9e_D%27Un_Cheval_Au_Galop_Et_D%C3%A9part_Sur_Pav%C3%A9s.ogg