Modules using RSA converter are setting Scalar fields to Arrays

[legoguy1000]

Per this conversation with @andrewkroh, #24620 (comment), we found that the RSA conversion tool is setting scalar fields like destination.ip and source.ip to arrays. This then causes issues for processors like add_network_direction because it has not logic to handle an array input.

[elasticmachine]

Pinging @elastic/security-external-integrations (Team:Security-External Integrations)

[botelastic]

Hi!
We just realized that we haven't looked into this issue in a while. We're sorry!

We're labeling this issue as Stale to make it hit our filters and make sure we get back to it as soon as possible. In the meantime, it'd be extremely helpful if you could take a look at it as well and confirm its relevance. A simple comment with a nice emoji will be enough :+1.
Thank you for your contribution!