Use "port_range_start/end" instead of udp_port for ICE range

mediasoup is not compatible with the UDP port multiplexing that LiveKit
uses when the `udp_port` setting is enabled, so it won't work anyways
and it's better to bt consistent between both Pion and mediasoup
engines.

Also extend the port range to 100 ports, given that now the multiplexing
feature won't be in use. 100 seems like a big enough range for local
development.

pro/docker-compose.yaml

@@ -104,7 +104,7 @@ services:
     ports:
       - 3478:3478/udp
       - 7881:7881/tcp
-      - 7882-7892:7882-7892/udp
+      - 7900-7999:7900-7999/udp
     entrypoint: /bin/sh /scripts/entrypoint.sh
     command: --config /etc/livekit.yaml
     volumes:

pro/livekit.yaml

@@ -36,7 +36,8 @@ bind_addresses:
     - ""
 rtc:
     tcp_port: 7881
-    udp_port: 7882-7892
+    port_range_start: 7900
+    port_range_end: 7999
 redis:
     address: redis:6379
     username: ""