Replaces Synth Vendor Headset (#6574)

# About the pull request

Replaces the senior command headset with the synthetic headset in the
synth equipment vendor

# Explain why it's good for the game

The synth headset is very useful as it gives synthetics a tracker for
the SLs, XO, and CO. This change will allow for survivor synthetics that
ally with the Almayer to track just as a normal synth. It also allows
shipside synths to keep the tracker if their spawn headset is
lost/stolen/melted. Also makes sense that the synth vendor gives the
synth headset


# Testing Photographs and Procedure


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<summary>Screenshots & Videos</summary>

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screenshots and the `<details>` tags.

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# Changelog

 
:cl: Nomoresolvalou

balance: The headset in the synthetic equipment vendor has been replaced
with a synthetic headset as opposed to a senior command headset

/:cl:

Co-authored-by: harryob <[email protected]>

code/game/machinery/vending/vendor_types/crew/synthetic.dm

@@ -91,7 +91,7 @@ GLOBAL_LIST_INIT(cm_vending_clothing_synth, list(
 		list("Experimental Tool Vendor Token", 0, /obj/item/coin/marine/synth, MARINE_CAN_BUY_ESSENTIALS, VENDOR_ITEM_MANDATORY),
 
 		list("RADIO (TAKE ALL)", 0, null, null, null),
-		list("Headset", 0, /obj/item/device/radio/headset/almayer/mcom/cdrcom, MARINE_CAN_BUY_EAR, VENDOR_ITEM_MANDATORY),
+		list("Headset", 0, /obj/item/device/radio/headset/almayer/mcom/synth, MARINE_CAN_BUY_EAR, VENDOR_ITEM_MANDATORY),
 
 		list("UNIFORM (CHOOSE 1)", 0, null, null, null),
 		list("Uniform, Outdated Synth", 0, /obj/item/clothing/under/rank/synthetic/old, MARINE_CAN_BUY_UNIFORM, VENDOR_ITEM_REGULAR),