candidate info should return order by epoch number

[coderbradlee]

query {
 voting(startEpoch: 11000, epochCount: 10) {
  candidateInfo{
    epochNumber
    candidates{
      name
    address
    totalWeightedVotes
    selfStakingTokens
    operatorAddress
    rewardAddress
    }
  }
}
}

The result should order by epochNumber