Play Internet Sound, Admin CKEY instead of character name (#74426)

## About The Pull Request

This fixes a minor oversight I had on my last PR that altered
`PlaySound.dm` Where it shows the admins character name instead of CKEY
like it was before I updated it. This wasn't intentional to show the
character name instead of CKEY.

## Why It's Good For The Game

Fixes a a unintended bug to return the name of the shown admin back to
how it was previously as being their CKEY rather than character name

<details>
<summary>Screenshots/Videos</summary>


![dreamseeker_szXvINGPN6](https://user-images.githubusercontent.com/2568378/229268382-8f57d039-50e3-4132-8f56-447ae117beb1.png)

</details>


## Changelog

🆑
fix: Play Internet Sound will no longer show an admins Character name
and returns back to showing CKEY as previously
/🆑

code/modules/admin/verbs/playsound.dm

@@ -128,9 +128,9 @@
 		switch(anon)
 			if("Yes")
 				if(res == "Yes")
-					to_chat(world, span_boldannounce("[user] played: [webpage_url]"), confidential = TRUE)
+					to_chat(world, span_boldannounce("[user.ckey] played: [webpage_url]"), confidential = TRUE)
 				else
-					to_chat(world, span_boldannounce("[user] played some music"), confidential = TRUE)
+					to_chat(world, span_boldannounce("[user.ckey] played some music"), confidential = TRUE)
 			if("No")
 				if(res == "Yes")
 					to_chat(world, span_boldannounce("An admin played: [webpage_url]"), confidential = TRUE)