void updateForBlock(final BlockHeader header, final VoteTally voteTally) {
    if (epochManager.isEpochBlock(header.getNumber())) {
      voteTally.discardOutstandingVotes();
      return;
    }
    final Optional<ValidatorVote> vote = blockInterface.extractVoteFromHeader(header);
    vote.ifPresent(voteTally::addVote);
  }
Update the vote tally to reflect changes caused by appending a new block to the chain.

@param header the header of the block being added
@param voteTally the vote tally to update
consensus/common/src/main/java/org/hyperledger/besu/consensus/common/validator/blockbased/VoteTallyUpdater.java