Update pelican.php

[DemOnJR]

If is not present it will throw an error:

Array
(
    [errors] => Array
        (
            [0] => Array
                (
                    [code] => ValidationException
                    [status] => 422
                    [detail] => The deploy.tags field must be present.
                    [meta] => Array
                        (
                            [source_field] => deploy.tags
                            [rule] => present
                        )

                )

        )

    [status_code] => 422
)

[ethanfiggs]

Thanks for this. I have this issue still in the latest module download from here.