Evaluate signature approvals in jenkins pipelines

[sxa]

Noted during the Jenkins update - we have a lot of Signatures already approved which may have introduced a security vulnerability (recommend clearing): messages in the jenkins script approval page.

We should look at each of those, understand it, and if desired mitigate the use in the code, or add a comment to indicate the reasoning for it. This will likely involve evaluation of things in ci-jenkins-pipelines and aqa-tests repositories.

FYI @karianna @steelhead31 since this came up in the January jenkins upgrade call