[BUG] Dataform CLI does not parse `actions` as an array

[HHammond]

For some reason the yargs parser is unable to properly parse array arguments to --actions.

It is possible to specify an array by doing --actions action_1 --actions action_2, however this is not clear or documented in the API.

https://github.com/yargs/yargs/blob/main/docs/api.md#arraykey

[mkamysz]

You can provide multiple actions as a comma-separated list --actions action_1, action_2. See https://github.com/dataform-co/dataform/issues/1200 and the PRs to close this issue.