[mirotalksfu] - fix typo - update dep.

app/api/join/join.php

@@ -1,7 +1,7 @@
 <?php
 
 $API_KEY = "mirotalksfu_default_secret";
-$MIROTALK_URL = "http://localhost:3010/api/v1/join";
+$MIROTALK_URL = "https://sfu.mirotalk.org/api/v1/join";
 
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_URL, $MIROTALK_URL);