message: indexer-agent: Fix linter warning
diff: import { Logger, SubgraphDeploymentID } from '@graphprotocol/common-ts'
  import PQueue from 'p-queue'
  -import { AgentConfig, Subgraph } from './types'
  +import { AgentConfig } from './types'
  import { Indexer } from './indexer'
  import { Network } from './network'
  