[mirotalksfu] - update mediasoup & readme

package.json

@@ -20,7 +20,7 @@
         "cors": "2.8.5",
         "express": "4.17.1",
         "httpolyglot": "0.1.2",
-        "mediasoup": "3.9.0",
+        "mediasoup": "3.9.1",
         "mediasoup-client": "3.6.43",
         "ngrok": "4.2.2",
         "socket.io": "4.2.0",