CBC Military Supplement Fix

A small compatibility fix for CBC Military Supplement 2.1.0 for Minecraft 1.21.1.

It prevents a startup crash on newer NeoForge versions caused by duplicate registration of the cbcmoreshells:sonar_pulse sound event:

java.lang.IllegalStateException: Adding duplicate key 'ResourceKey[minecraft:sound_event / cbcmoreshells:sonar_pulse]'

Install this fix alongside the original CBC Military Supplement mod.

Once the original mod author fixes this issue, this project will be archived.