[NO GBP] Restores jumping emote sound (#92724)

## About The Pull Request

Fixes #92709

#88464 - Accidentally broke jumping sound on the emote - There was a
later commit to that same PR to undo it but not sure if been merged.

Just making this PR so that it can be fully fixed.

code/modules/mob/emote.dm

@@ -147,6 +147,7 @@
 /datum/emote/jump
 	key = "jump"
 	key_third_person = "jumps"
+	message = "jumps!"
 	// Allows ghosts to jump
 	mob_type_ignore_stat_typecache = list(/mob/dead/observer)
 	affected_by_pitch = FALSE