Kintsugi review comments (#2831)

* Fix makefile

* Return on invalid finalized block

* Fix todo in gossip scoring

* Require --merge for --fee-recipient

* Bump eth2_serde_utils

* Change schema versions

* Swap hash/uint256 test_random impls

* Use default for ExecutionPayload::empty

* Check for DBs before removing

* Remove kintsugi docker image

* Fix CLI default value

beacon_node/beacon_chain/src/beacon_chain.rs

@@ -3281,6 +3281,9 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
                         "Finalized block has an invalid execution payload.",
                     ))
                     .map_err(BeaconChainError::InvalidFinalizedPayloadShutdownError)?;
+
+                // Exit now, the node is in an invalid state.
+                return Ok(());
             }
 
             // Due to race conditions, it's technically possible that the head we load here is