(maint) Bump to ezbake 1.8.7
(maint) Bump to ezbake 1.8.7

This commit bumps to the latest ezbake version. This version adds a Gemfile to
the resulting package build and makes use of the packaging gem, rather than
cloning the packaging repo.

puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb