Committer wanted for step-certificates and step-cli update to 0.27.2

[Markus Wipp]

Hi all, 

Could a committer please commit:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=280419
and
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=280420

Both have been tested successfully in my local poudriere.

Thanks in advance
Markus