Enable random beacon in testnet (#17881)

## Description 

Enables the Sui native randomness feature on testnet.

## Test plan 

Unit and integration tests, manual testing on devnet and other synthetic
test environments.

---

## 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: Sui native randomness feature now enabled on Testnet.
- [ ] Nodes (Validators and Full nodes): 
- [ ] Indexer: 
- [ ] JSON-RPC: 
- [ ] GraphQL: 
- [ ] CLI: 
- [ ] Rust SDK:

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

@@ -131,6 +131,7 @@ const MAX_PROTOCOL_VERSION: u64 = 47;
 //             Enable resharing at the same initial shared version.
 // Version 47: Use tonic networking for Mysticeti.
 //             Resolve Move abort locations to the package id instead of the runtime module ID.
+//             Enable random beacon in testnet.
 
 #[derive(Copy, Clone, Debug, Hash, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
 pub struct ProtocolVersion(u64);
@@ -2219,6 +2220,14 @@ impl ProtocolConfig {
 
                     // Enable resolving abort code IDs to package ID instead of runtime module ID
                     cfg.feature_flags.resolve_abort_locations_to_package_id = true;
+
+                    // Enable random beacon on testnet.
+                    if chain != Chain::Mainnet {
+                        cfg.feature_flags.random_beacon = true;
+                        cfg.random_beacon_reduction_lower_bound = Some(1600);
+                        cfg.random_beacon_dkg_timeout_round = Some(3000);
+                        cfg.random_beacon_min_round_interval_ms = Some(200);
+                    }
                 }
                 // Use this template when making changes:
                 //

crates/sui-protocol-config/src/snapshots/sui_protocol_config__test__Testnet_version_47.snap

@@ -32,6 +32,7 @@ feature_flags:
   simple_conservation_checks: true
   loaded_child_object_format_type: true
   receive_objects: true
+  random_beacon: true
   bridge: true
   enable_effects_v2: true
   narwhal_certificate_v2: true
@@ -268,6 +269,9 @@ 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_dkg_timeout_round: 3000
+random_beacon_min_round_interval_ms: 200
 consensus_max_transaction_size_bytes: 262144
 consensus_max_transactions_in_block_bytes: 6291456
 

crates/sui-protocol-config/src/snapshots/sui_protocol_config__test__version_47.snap

@@ -275,7 +275,7 @@ max_age_of_jwk_in_epochs: 1
 random_beacon_reduction_allowed_delta: 800
 random_beacon_reduction_lower_bound: 1600
 random_beacon_dkg_timeout_round: 3000
-random_beacon_min_round_interval_ms: 150
+random_beacon_min_round_interval_ms: 200
 consensus_max_transaction_size_bytes: 262144
 consensus_max_transactions_in_block_bytes: 6291456