Removes Captain from the security department (still under sec in the ban panel) (#92940)

## About The Pull Request

Removes the security department from the Captain 

Captain still remains under Security in jobbans

<img width="436" height="74" alt="image"
src="https://github.com/user-attachments/assets/ffac3488-282c-458e-80f1-82fd316fb006"
/>

## Why It's Good For The Game

There seemed to be a common misconception that the Captain was
officially integrated into security as a consequence of the Captain
gaining security department for the purpose of jobban sorting

However, Captain is *not* a member of Security.

## Changelog

🆑 Melbert
del: Captain's no longer sorted under Security in places such as the
manifest or job selection
/🆑

code/modules/admin/sql_ban_system.dm

@@ -326,7 +326,7 @@
 			var/department_name = department.department_name
 			output += "<div class='column'><label class='rolegroup [label_class]'>[tgui_fancy ? "<input type='checkbox' name='[label_class]' class='hidden' onClick='header_click_all_checkboxes(this)'>" : ""] \
 			[department_name]</label><div class='content'>"
-			for(var/datum/job/job_datum as anything in department.department_jobs)
+			for(var/datum/job/job_datum as anything in department.get_jobban_jobs())
 				if(break_counter > 0 && (break_counter % 3 == 0))
 					output += "<br>"
 				break_counter++