Configure cloudkitty_influxdb_use_ssl automatically based on the value
of kolla_enable_tls_internal. Set cloudkitty_elasticsearch_cafile,
cloudkitty_influxdb_cafile and cloudkitty_prometheus_cafile to
openstack_cacert.
Disable certificate validation when bootstrapping the InfluxDB database:
the influxdb_database module and the InfluxDB 1.x Python client don't
support specifying a CA certificate file.
This fixes bootstrap and execution of CloudKitty with internal TLS.
Closes-Bug: #1998831
Change-Id: I5524169b9567819d379726099bf70c692c85acc1
78e7f133f0