Fixes UPP Soldier preset (cmss13-devs#4226)

# About the pull request

UPP soldier preset was getting overridden by the base UPP survivor
preset via having the same preset name. 😢

Fixes.


# Explain why it's good for the game

People will stop pinging me thinking my UPP gun PR is the thing causing
the issue.


# Changelog
:cl:
fix: UPP soldier preset works again
/:cl:

code/modules/gear_presets/survivors.dm

@@ -1577,7 +1577,7 @@
 	..()
 
 /datum/equipment_preset/survivor/upp
-	name = "UPP Soldier"
+	name = "Survivor - UPP"
 	paygrade = "UE1"
 	origin_override = ORIGIN_UPP
 	rank = JOB_SURVIVOR