feat: integrate with ethrex over the Engine API

Cargo.toml

@@ -11,6 +11,7 @@ members = [
     "crates/common/test-fixtures",
     "crates/common/types",
     "crates/net/api",
+    "crates/net/ethrex-client",
     "crates/net/p2p",
     "crates/net/rpc",
     "crates/storage",
@@ -35,6 +36,7 @@ ethlambda-metrics = { path = "crates/common/metrics" }
 ethlambda-test-fixtures = { path = "crates/common/test-fixtures" }
 ethlambda-types = { path = "crates/common/types" }
 ethlambda-network-api = { path = "crates/net/api" }
+ethlambda-ethrex-client = { path = "crates/net/ethrex-client" }
 ethlambda-p2p = { path = "crates/net/p2p" }
 ethlambda-rpc = { path = "crates/net/rpc" }
 ethlambda-storage = { path = "crates/storage" }

bin/ethlambda/Cargo.toml

@@ -7,6 +7,7 @@ license.workspace = true
 
 [dependencies]
 ethlambda-blockchain.workspace = true
+ethlambda-ethrex-client.workspace = true
 ethlambda-network-api.workspace = true
 ethlambda-p2p.workspace = true
 ethlambda-types.workspace = true

bin/ethlambda/src/checkpoint_sync.rs

@@ -303,6 +303,7 @@ mod tests {
             justified_slots: JustifiedSlots::new(),
             justifications_roots: Default::default(),
             justifications_validators: JustificationValidators::new(),
+            latest_execution_payload_header: Default::default(),
         }
     }