* Prepend basepath to liveness and readiness probes.
* Support Chronograf `--basepath`, `$BASE_PATH` options in chart.

* Update Chronograf chart version.
Co-authored-by: Matt Shooshtari (mshoosht) <mshoosht@cisco.com>

bump chart version for chronograf + influxdb

This will allow us to use generic oauth using the helm chart more
easily (this was already possible by using `envFromSecret`).

Tested with oauth from Azure.

This is required so that the charts lint & test pipeline succeeds. Furthermore this is the apiVersion for currently supported versions of kubernetes.