Dependencies

[jantman]

We currently pin puppetlabs/stdlib to < 4.13.0 because saz/ssh 3.0.1 still uses the deprecated validate_hash() function, and doesn't officially support puppet5.

saz/sudo should now support new stdlib versions and puppet5, since 5.0.0 has been released.

garethr/docker 5.3.0 also has compatibility issues, but it sounds like puppetlabs/docker should be used instead and fixes them.

Once saz/ssh is updated to work with puppet5 and the latest stdlib, attempt to update all dependencies in both this project and workstation_bootstrap.