[ETCM-355] Post merge fix

Author: lukasz-golebiewski

src/main/scala/io/iohk/ethereum/network/handshaker/EthNodeStatus64ExchangeState.scala

@@ -22,15 +22,15 @@ case class EthNodeStatus64ExchangeState(
   override protected def createStatusMsg(): MessageSerializable = {
     val bestBlockHeader = getBestBlockHeader()
     val chainWeight = blockchain.getChainWeightByHash(bestBlockHeader.hash).get
-    val genesisHash = blockchain.genesisHeader.hash
+    val genesisHash = blockchainReader.genesisHeader.hash
 
     val status = ETH64.Status(
       protocolVersion = ProtocolVersions.ETH64.version,
       networkId = peerConfiguration.networkId,
       totalDifficulty = chainWeight.totalDifficulty,
       bestHash = bestBlockHeader.hash,
       genesisHash = genesisHash,
-      forkId = ForkId.create(genesisHash, blockchainConfig)(blockchain.getBestBlockNumber())
+      forkId = ForkId.create(genesisHash, blockchainConfig)(blockchainReader.getBestBlockNumber())
     )
 
     log.debug(s"Sending status $status")

src/test/scala/io/iohk/ethereum/network/handshaker/EtcHandshakerSpec.scala

@@ -196,7 +196,7 @@ class EtcHandshakerSpec extends AnyFlatSpec with Matchers {
 
     val newChainWeight = ChainWeight.zero.increase(genesisBlock.header).increase(firstBlock.header)
 
-    blockchain.save(firstBlock, Nil, newChainWeight, saveAsBestBlock = true)
+    blockchainWriter.save(firstBlock, Nil, newChainWeight, saveAsBestBlock = true)
 
     val newLocalStatusMsg =
       localStatusMsg