(maint) Update to latest ezbake
(maint) Update to latest ezbake

Ezbake 0.3.21 was just released, so this updates to use that version.

waynr/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,rbrw/puppetdb,kbarber/puppetdb,rbrw/puppetdb,waynr/puppetdb,kbarber/puppetdb,mullr/puppetdb,rbrw/puppetdb,senior/puppetdb,mullr/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,senior/puppetdb,puppetlabs/puppetdb,kbarber/puppetdb,mullr/puppetdb,waynr/puppetdb,senior/puppetdb,mullr/puppetdb,waynr/puppetdb,kbarber/puppetdb,mullr/puppetdb,senior/puppetdb,rbrw/puppetdb,rbrw/puppetdb