Committer wanted for step-certificates and step-cli update to 0.26.0

[Markus Wipp]

Hi all, 

Could a commuter please commit:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278035
and
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278036

Both have been tested successfully in my local poudriere.

Thanks
Markus