Currently, we don't process the results of this execution,
because it's not really imprortant

Let's at least log the err if the execution went wrong

That will also make Vulnerability report happy

Several of our commands only touch the internal API, and go nowhere
near Gitaly. Improve logging for each of these in a single MR. In
general, we want to be able to tell what happened in the execution of
each command, and to track failures down to a specific line of code.

Changelog: added

This change removes session duration
information from output of 2fa_verify command