* Fixes SQL Death Tracking again
Removes the foreign key constraint from the ckeys.
-> Ckeys can have different values i.e. when someone dies while aghosted the ckey becomes @ckey
Ensurs that the char_id is set to null and not 0 -> To make sure the foreign key constraint there actually works
* Simpler changelog
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Co-authored-by: Werner <Arrow768@users.noreply.github.com>
