feature: Add an option to enable Telegram to work behind a proxy. (#6125)

Co-authored-by: Frank Elsinga <frank@elsinga.de>

server/notification-providers/opsgenie.js

@@ -80,6 +80,7 @@ class Opsgenie extends NotificationProvider {
                 "Authorization": `GenieKey ${notification.opsgenieApiKey}`,
             }
         };
+        config = this.getAxiosConfigWithProxy(config);
 
         let res = await axios.post(url, data, config);
         if (res.status == null) {