Argent monk NPC inside Trial of the Champions keeps atacking afther he dies (happens some times not 100% of time)

### Current Behaviour

When you kill Argent Monk NPC, some times he keeps atacking you afther you die

### Expected Behaviour

When the creature dies it should "die"

### Steps to reproduce the problem

Go in Trial of the champions
Kill Argent Monk
It will bug out sometimes

### Extra Notes

_No response_

### AutoBalance Debug Commands

_No response_

### AC rev. hash/commit

Cloned the rep at 20/03/2024

### Operating system

Windows

### Custom changes or Modules

Autobalance
Sololfg ( it bugs with or without sololfg)

Start by reproducing the issue in Trial of the Champions with the Argent Monk, following the listed kill sequence, and compare runs where the NPC dies normally with runs where it keeps attacking. Trace the Argent Monk's death handling in the module or underlying AzerothCore code. Done means the creature consistently stops attacking after death, including when AutoBalance and Sololfg are present.

Written by the indexing model from the issue text.