(PA-4787) Warnings when running embedded ruby

[chutzimir]

Getting warnings when running the wrapped binaries when bundler has
exported some environment variables. The fix is to clean out the
environment before running the ruby process which strips the
LD_LIBRARY_PATH.

[puppetlabs-jenkins]

Can one of the admins verify this patch?

[CLAassistant]

All committers have signed the CLA.

[chutzimir]

I cannot make a Jira ticket as Jira is not letting me make an account (it says my email is already in use), and if I request username recovery, I don't get any email. So I'm a bit stuck on how to report this issue.

[joshcooper]

Thanks for submitting this PR @chutzimir. Let me check with some folks to see about the JIRA issue.

[chutzimir]

To clarify how to reproduce the issue, I have a ruby script that does some jobs. I run that script using bundler. From the script, I fork out a call to the rt cli. And that one throws a bunch of warnings as it is trying to find stuff in the location of my parent bundler environment.

[chutzimir]

Thanks for submitting this PR @chutzimir. Let me check with some folks to see about the JIRA issue.

I was able to get in Jira and made a ticket. Also updated the commit to have the ticket number and rebased the branch on the latest main.