Adds OpenDream as a CI lint (#21099)

* Initial Commit

* Makes the CI work (maybe)

* Of course CI has a hissy fit

* Actually fixes the codebase

* Oops 1

* Tweaks

* oops

code/game/objects/effects/spawners/random_spawners.dm

@@ -23,6 +23,8 @@
 	var/thing_to_place = pickweight(result)
 	if(ispath(thing_to_place, /datum/nothing))
 		// Nothing.
+		qdel(src) // See line 13, this needs moving to /Initialize() so we can use the qdel hint already
+		return
 	else if(ispath(thing_to_place, /turf))
 		T.ChangeTurf(thing_to_place)
 	else