`close` method of transports not called

[DavidS]

Describe the Bug

The close method on a Transport is not called at the end of processing.

Expected Behavior

The close method on a Transport should be called to release a transport's external resources at the end of processing.

Steps to Reproduce

By a community member on slack:

As a test, i added

def close(context)
    context.debug('Logout connection')

However, it doesn't get called. I don't see it in the logs

Additional Context

Any ruby-side resources are usually cleaned up at the end of processing by puppet device or ACE's forked processing. This does not help for resources that a transport allocates outside of ruby (e.g. opening a session on the target API).