build: Update Snuba commands (#434)
Update the consumer and replacer commands. These now take a storage
instead of a dataset name as per https://github.com/getsentry/snuba/pull/875
and https://github.com/getsentry/snuba/pull/861.
This would require getsentry/snuba:ab2e49cc1f475e59a037d882eb1cecddd23596b9 or more recent to work.