`slack-15.0`: add topo/healthcheck flags to `vttablet` for `txthrottler` · slackhq/vitess@2d146dd

Canceling since a higher priority waiting request for 'format('{0}-{1}', refs/heads/vttablet-topo_read_concurrency.slack-15.0, 'Cluster (onlineddl_ghost)')' exists

The operation was canceled.

The `python-version` input is not set. The version of Python currently in `PATH` will be used.