Fix issue close timeline icon (#36138)

Previously there was a icon mismatch between a issue's label and the
timeline close event icon

templates/repo/issue/view_content/comments.tmpl

@@ -96,7 +96,7 @@
 			</div>
 		{{else if eq .Type 2}}
 			<div class="timeline-item event" id="{{.HashTag}}">
-				<span class="badge tw-bg-red tw-text-white">{{svg "octicon-circle-slash"}}</span>
+				<span class="badge tw-bg-red tw-text-white">{{svg "octicon-issue-closed"}}</span>
 				{{if not .OriginalAuthor}}
 					{{template "shared/user/avatarlink" dict "user" .Poster}}
 				{{end}}