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

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

server/notification-providers/sevenio.js

@@ -17,7 +17,7 @@ class SevenIO extends NotificationProvider {
             text: msg,
         };
 
-        const config = {
+        let config = {
             baseURL: "https://gateway.seven.io/api/",
             headers: {
                 "Content-Type": "application/json",
@@ -26,6 +26,7 @@ class SevenIO extends NotificationProvider {
         };
 
         try {
+            config = this.getAxiosConfigWithProxy(config);
             // testing or certificate expiry notification
             if (heartbeatJSON == null) {
                 await axios.post("sms", data, config);