Improve single-node testnet support and Arc NetworkConfig/ChainSpec (#6396)

* Arc ChainSpec and NetworkConfig

* Fix release tests

* Fix lint

* Merge remote-tracking branch 'origin/unstable' into single-node-testnet

beacon_node/network/src/sync/block_lookups/tests.rs

@@ -28,7 +28,7 @@ use lighthouse_network::service::api_types::{
     SyncRequestId,
 };
 use lighthouse_network::types::SyncState;
-use lighthouse_network::{NetworkGlobals, Request};
+use lighthouse_network::{NetworkConfig, NetworkGlobals, Request};
 use slog::info;
 use slot_clock::{ManualSlotClock, SlotClock, TestingSlotClock};
 use store::MemoryStore;
@@ -116,7 +116,7 @@ impl TestRig {
 
         // Initialise a new beacon chain
         let harness = BeaconChainHarness::<EphemeralHarnessType<E>>::builder(E)
-            .spec(spec)
+            .spec(Arc::new(spec))
             .logger(log.clone())
             .deterministic_keypairs(1)
             .fresh_ephemeral_store()
@@ -132,9 +132,11 @@ impl TestRig {
         let (network_tx, network_rx) = mpsc::unbounded_channel();
         // TODO(das): make the generation of the ENR use the deterministic rng to have consistent
         // column assignments
+        let network_config = Arc::new(NetworkConfig::default());
         let globals = Arc::new(NetworkGlobals::new_test_globals(
             Vec::new(),
             &log,
+            network_config,
             chain.spec.clone(),
         ));
         let (beacon_processor, beacon_processor_rx) = NetworkBeaconProcessor::null_for_testing(