Fixes #34089 - Add trusted proxies setting

[sbernhard]

No description provided.

[sbernhard]

I don't think the failed tests are because of this PR. Am I right?

[ekohl]

I'm ok with the phrasing now. @ehelms?

[evgeni]

I think this broke our builds, because Stdlib::IP::Address is defined as:

  type Stdlib::IP::Address = Variant[
    Stdlib::IP::Address::V4,
    Stdlib::IP::Address::V6,
  ]

And Kafo can't parse multi-line strings properly. The resulting error message is:

D, [2022-01-04T03:15:37.585013 #6846] DEBUG -- : Using Puppet module parser KafoParsers::PuppetStringsModuleParser
F, [2022-01-04T03:15:38.845230 #6846] FATAL -- : Unable to continue because of: data type not recognized Variant[
rake aborted!

[ekohl]

I forgot to link back https://community.theforeman.org/t/foreman-installer-develop-package-release-1015-failed/26627/3 and #1013 but here it is.