Boss Achievement (Because I Spit Fire) doesn't work when (Kill Urzael) bounty is active

[TimberWolf-1533]

@Graveheart-1876

Boss Achievement: Because I Spit Hot Fire (Urzael) does not work if the Bounty Kill Urzael is active.

With Bounty active: Tested and got hit with 6 Burning Cannonballs and after the 5th, the Achievement indicator didn’t show.

Without Bounty active: Redid same fight when the Bounty wasn’t active and got the Achievement after the 5th Burning Cannonball hit.

Not a bug.

https://youtu.be/NVhXq8EIVuQ