[action_timers] Change url submodule

et supprime sa branche

.gitmodules

@@ -6,8 +6,7 @@
 	url = https://sys4.fr/gitea/mff/3d_armor_classes.git
 [submodule "action_timers"]
 	path = action_timers
-	url = https://sys4.fr/gitea/nalc/action_timers.git
+	url = https://sys4.fr/gitea/mff/action_timers.git
-	branch = master
 [submodule "ambience"]
 	path = ambience
 	url = https://sys4.fr/gitea/nalc/ambience.git