feat: optimistically regenerate new credentials on disconnect

Author: 1egoman

src/room/Room.ts

@@ -990,6 +990,7 @@ class Room extends (EventEmitter as new () => TypedEmitter<RoomEventCallbacks>)
       this.handleDisconnect(stopTracks, DisconnectReason.CLIENT_INITIATED);
       /* @ts-ignore */
       this.engine = undefined;
+      this.connectionCredentials?.generate();
     } finally {
       unlock();
     }