fix: add a bit more logging to help track down usage billing bugs

[travis]

For some reason some space snapshots have been missed in the past, despite seemingly being in the DB and showing up in dry run.

Also throw if the usage table queue gets an empty message - if this is happening I'd like to understand why, and I'm suspicious that some of our usage tracking issues are messages that are somehow being created with no records.

[seed-deploy]

View stack outputs

• pr455-w3infra-BillingDbStack

  Name	Value
  customerTableName	pr455-w3infra-customer
  egressTrafficTableName	pr455-w3infra-egress-traffic-events
  spaceDiffTableName	pr455-w3infra-space-diff
  spaceSnapshotTableName	pr455-w3infra-space-snapshot
  usageTable	pr455-w3infra-usage

• pr455-w3infra-BillingStack

  Name	Value
  ApiEndpoint	https://f6si8su5fe.execute-api.us-east-2.amazonaws.com
  billingCronHandlerURL	https://bpuid73hnwi6zu7jrfueksifk40bkzth.lambda-url.us-east-2.on.aws/
  CustomDomain	https://pr455.billing.web3.storage
  EgressTrafficQueueURL	https://sqs.us-east-2.amazonaws.com/505595374361/pr455-w3infra-egress-traffic-queue

• pr455-w3infra-CarparkStack

  Name	Value
  BucketName	carpark-pr455-0
  Region	us-east-2

• pr455-w3infra-PSAStack

  Name	Value
  downloadFunctionURL	https://vmwbpqavwmcbspiih2sox5x3ym0arckm.lambda-url.us-east-2.on.aws/
  hashFunctionURL	https://xspuwyrgrk2unqkphmqdopx53a0hooin.lambda-url.us-east-2.on.aws/

• pr455-w3infra-RoundaboutStack

  Name	Value
  ApiEndpoint	https://47o6hmlwvl.execute-api.us-east-2.amazonaws.com
  CustomDomain	https://pr455.roundabout.web3.storage

• pr455-w3infra-UcanInvocationStack

  Name	Value
  invocationBucketName	invocation-store-pr455-0
  taskBucketName	task-store-pr455-0
  workflowBucketName	workflow-store-pr455-0

• pr455-w3infra-UploadApiStack

  Name	Value
  ApiEndpoints	["https://ffplzp4a0g.execute-api.us-east-2.amazonaws.com","https://m5ow9i4abk.execute-api.us-east-2.amazonaws.com"]
  CustomDomains	["https://pr455.up.web3.storage","https://pr455.up.storacha.network"]

• pr455-w3infra-BusStack

• pr455-w3infra-FilecoinStack

• pr455-w3infra-IndexerStack

• pr455-w3infra-ReplicatorStack

• pr455-w3infra-UcanFirehoseStack

• pr455-w3infra-UploadDbStack