Fix bug for version update hint (#18701)

Co-authored-by: silverwind <me@silverwind.io>

templates/admin/dashboard.tmpl

@@ -5,7 +5,7 @@
 		{{template "base/alert" .}}
 		{{if .NeedUpdate}}
 			<div class="ui negative message flash-error">
-				<p>"Gitea {{.RemoteVersion | Str2html}} is now available, you are running {{.AppVer | Str2html}}. Check the <a href="https://blog.gitea.io">blog</a> for more details.</p>
+				<p>{{.i18n.Tr "admin.dashboard.new_version_hint" (.RemoteVersion | Str2html) (AppVer | Str2html)}}</p>
 			</div>
 		{{end}}
 		<h4 class="ui top attached header">