Update auto_conf yaml to default to preview (#5661)
Update auto_conf yaml to default to preview (#5661)

* Update auto_conf yaml to default to preview

* fix desc

* Update etcd/datadog_checks/etcd/data/auto_conf.yaml

Co-Authored-By: Hippolyte HENRY <9c7cc16571fc1f6e36edefb4a744c3748fd15c68@users.noreply.github.com>

Co-authored-by: Hippolyte HENRY <9c7cc16571fc1f6e36edefb4a744c3748fd15c68@users.noreply.github.com>

DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core