message: op-node: emit l2_finalized block
diff: @@ -175,6 +175,7 @@ func (eq *EngineQueue) tryFinalizeL2() {
  }
  }
  eq.finalized = finalizedL2
  + eq.metrics.RecordL2Ref("l2_finalized", finalizedL2)
  }
  // postProcessSafeL2 buffers the L1 block the safe head was fully derived from,
  