message: indexer-service: Keep name Wallet for ethers wallet
diff: @@ -3,7 +3,7 @@ import { Message as WireMessage } from '@statechannels/client-api-schema'
  import { Message as PushMessage } from '@statechannels/wallet-core'
  import { Logger, Attestation } from '@graphprotocol/common-ts'
  -import { Wallet as EthersWallet } from 'ethers'
  +import { Wallet } from 'ethers'
  import {
  AllocationPaymentClient as AllocationPaymentClientInterface,
  @@ -16,13 +16,13 @@ interface AllocationPaymentClientOptions {
  logger: Logger
  client: null // May re-use these properties
  signer: null // so keeping "null" for now
  - wallet: EthersWallet
  + wallet: Wallet
  }
  export class AllocationPaymentClient implements AllocationPaymentClientInterface {
  channelIds: Record<string, string> = {}
  allocation: Allocation
  - wallet: EthersWallet
  + wallet: Wallet
  private logger: Logger
  private client: null
  