Fix update hint bug (go-gitea#18996)

Author: lunny

templates/admin/dashboard.tmpl

@@ -5,7 +5,7 @@
 		{{template "base/alert" .}}
 		{{if .NeedUpdate}}
 			<div class="ui negative message flash-error">
-				<p>{{.i18n.Tr "admin.dashboard.new_version_hint" (.RemoteVersion | Str2html) (AppVer | Str2html)}}</p>
+				<p>{{(.i18n.Tr "admin.dashboard.new_version_hint" .RemoteVersion AppVer) | Str2html}}</p>
 			</div>
 		{{end}}
 		<h4 class="ui top attached header">