Merge branch 'unstable' into vc-fallback

Cargo.lock

@@ -3876,7 +3876,9 @@ dependencies = [
  "eth2_wallet",
  "ethereum_hashing",
  "ethereum_ssz",
+ "execution_layer",
  "genesis",
+ "hex",
  "int_to_bytes",
  "lighthouse_network",
  "lighthouse_version",
@@ -8438,6 +8440,7 @@ dependencies = [
  "slashing_protection",
  "slog",
  "slot_clock",
+ "strum",
  "sysinfo",
  "system_health",
  "task_executor",