Enable random beacon on mainnet (#18756)

## Description 

Enables the native randomness (random beacon) feature on sui mainnet.

## Test plan 

Extensive manual and automated testing.

---

## Release notes

Check each box that your changes affect. If none of the boxes relate to
your changes, release notes aren't required.

For each box you select, include information after the relevant heading
that describes the impact of your changes that a user might notice and
any actions they must take to implement updates.

- [x] Protocol: Enables the native randomness (random beacon) feature on
sui mainnet.
- [ ] Nodes (Validators and Full nodes): 
- [ ] Indexer: 
- [ ] JSON-RPC: 
- [ ] GraphQL: 
- [ ] CLI: 
- [ ] Rust SDK:
- [ ] REST API:

crates/sui-protocol-config/src/lib.rs

@@ -164,6 +164,7 @@ const MAX_PROTOCOL_VERSION: u64 = 53;
 // Version 53: Add feature flag to decide whether to attempt to finalize bridge committee
 //             Enable consensus commit prologue V3 on testnet.
 //             Turn on shared object congestion control in testnet.
+//             Enable random beacon on mainnet.
 
 #[derive(Copy, Clone, Debug, Hash, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
 pub struct ProtocolVersion(u64);
@@ -2536,6 +2537,12 @@ impl ProtocolConfig {
                         cfg.feature_flags.per_object_congestion_control_mode =
                             PerObjectCongestionControlMode::TotalTxCount;
                     }
+
+                    // Enable random beacon on mainnet.
+                    cfg.feature_flags.random_beacon = true;
+                    cfg.random_beacon_reduction_lower_bound = Some(1000);
+                    cfg.random_beacon_dkg_timeout_round = Some(3000);
+                    cfg.random_beacon_min_round_interval_ms = Some(500);
                 }
                 // Use this template when making changes:
                 //

crates/sui-protocol-config/src/snapshots/sui_protocol_config__test__Mainnet_version_53.snap

@@ -32,6 +32,7 @@ feature_flags:
   simple_conservation_checks: true
   loaded_child_object_format_type: true
   receive_objects: true
+  random_beacon: true
   enable_effects_v2: true
   narwhal_certificate_v2: true
   verify_legacy_zklogin_address: true
@@ -273,6 +274,9 @@ consensus_bad_nodes_stake_threshold: 20
 max_jwk_votes_per_validator_per_epoch: 240
 max_age_of_jwk_in_epochs: 1
 random_beacon_reduction_allowed_delta: 800
+random_beacon_reduction_lower_bound: 1000
+random_beacon_dkg_timeout_round: 3000
+random_beacon_min_round_interval_ms: 500
 random_beacon_dkg_version: 1
 consensus_max_transaction_size_bytes: 262144
 consensus_max_transactions_in_block_bytes: 6291456

crates/sui-protocol-config/src/snapshots/sui_protocol_config__test__Testnet_version_53.snap

@@ -277,9 +277,9 @@ consensus_bad_nodes_stake_threshold: 20
 max_jwk_votes_per_validator_per_epoch: 240
 max_age_of_jwk_in_epochs: 1
 random_beacon_reduction_allowed_delta: 800
-random_beacon_reduction_lower_bound: 1600
+random_beacon_reduction_lower_bound: 1000
 random_beacon_dkg_timeout_round: 3000
-random_beacon_min_round_interval_ms: 200
+random_beacon_min_round_interval_ms: 500
 random_beacon_dkg_version: 1
 consensus_max_transaction_size_bytes: 262144
 consensus_max_transactions_in_block_bytes: 6291456

crates/sui-protocol-config/src/snapshots/sui_protocol_config__test__version_53.snap

@@ -286,9 +286,9 @@ consensus_bad_nodes_stake_threshold: 20
 max_jwk_votes_per_validator_per_epoch: 240
 max_age_of_jwk_in_epochs: 1
 random_beacon_reduction_allowed_delta: 800
-random_beacon_reduction_lower_bound: 1600
+random_beacon_reduction_lower_bound: 1000
 random_beacon_dkg_timeout_round: 3000
-random_beacon_min_round_interval_ms: 200
+random_beacon_min_round_interval_ms: 500
 random_beacon_dkg_version: 1
 consensus_max_transaction_size_bytes: 262144
 consensus_max_transactions_in_block_bytes: 6291456