Spike: AWS Shield Advanced

[sablumiah]

Background: Spike AWS Shield advanced and gauge the benefits for CP. Also, look into how it would be implemented via code into live and all/any other test clusters

https://aws.amazon.com/shield/?whats-new-cards.sort-by=item.additionalFields.postDateTime&whats-new-cards.sort-order=desc

AWS Shield is applied at an org level.

(MP Ticket: https://github.com/ministryofjustice/modernisation-platform/issues/1601)

Assumptions/Questions:

This story excludes the spike into WAF parts of Shield Advanced

[AntonyBishop]

More guidance from what MP are doing - https://mojdt.slack.com/archives/C514ETYJX/p1652431613101689