fix(prysm): run p2p-udp on different port as it might conflict with the new quic port (#845)

Prysm added QUIC to their client as per
https://github.com/prysmaticlabs/prysm/pull/14688 . This currently broke
our runs using the master branch prysm image due to the QUIC port
running on 13000 by default. Which was conflicting with the settings we
were providing for the UDP port:

```sh
--p2p-quic-port value                                The QUIC port used by libp2p. (default: 13000)
--p2p-tcp-port value                                 The TCP port used by libp2p. (default: 13000)
--p2p-udp-port value                                 The UDP port used by the discovery service discv5. (default: 12000)
```

I've also added the CLI flags for it, but still commented out until a
stable release is done.

src/cl/prysm/prysm_launcher.star

@@ -12,6 +12,7 @@ BEACON_DATA_DIRPATH_ON_SERVICE_CONTAINER = "/data/prysm/beacon-data/"
 # Port nums
 DISCOVERY_TCP_PORT_NUM = 13000
 DISCOVERY_UDP_PORT_NUM = 12000
+DISCOVERY_QUIC_PORT_NUM = 13000
 BEACON_HTTP_PORT_NUM = 3500
 RPC_PORT_NUM = 4000
 BEACON_MONITORING_PORT_NUM = 8080
@@ -161,6 +162,8 @@ def get_beacon_config(
 
     public_ports = {}
     discovery_port = DISCOVERY_TCP_PORT_NUM
+    discovery_port_udp = DISCOVERY_UDP_PORT_NUM
+    discovery_port_quic = DISCOVERY_QUIC_PORT_NUM
     if port_publisher.cl_enabled:
         public_ports_for_component = shared_utils.get_public_ports_for_component(
             "cl", port_publisher, participant_index
@@ -181,7 +184,8 @@ def get_beacon_config(
 
     used_port_assignments = {
         constants.TCP_DISCOVERY_PORT_ID: discovery_port,
-        constants.UDP_DISCOVERY_PORT_ID: discovery_port,
+        constants.UDP_DISCOVERY_PORT_ID: discovery_port_udp,
+        # constants.QUIC_DISCOVERY_PORT_ID: discovery_port_quic, # TODO: Uncomment this when we have a stable release with this flag
         constants.HTTP_PORT_ID: BEACON_HTTP_PORT_NUM,
         constants.METRICS_PORT_ID: BEACON_MONITORING_PORT_NUM,
         constants.RPC_PORT_ID: RPC_PORT_NUM,
@@ -200,7 +204,8 @@ def get_beacon_config(
         "--http-port={0}".format(BEACON_HTTP_PORT_NUM),
         "--p2p-host-ip=" + port_publisher.nat_exit_ip,
         "--p2p-tcp-port={0}".format(discovery_port),
-        "--p2p-udp-port={0}".format(discovery_port),
+        "--p2p-udp-port={0}".format(discovery_port_udp),
+        # "--p2p-quic-port={0}".format(discovery_port_quic) # TODO: Uncomment this when we have a stable release with this flag
         "--min-sync-peers={0}".format(MIN_PEERS),
         "--verbosity=" + log_level,
         "--slots-per-archive-point={0}".format(32 if constants.ARCHIVE_MODE else 8192),