releases: do not include hostname in sudoers.d

as it turns out, "#includedir" has a behaviour similar to run-parts, i.e. it
will ignore files that contain dots or tilde:

  sudo will read each file in /etc/sudoers.d, skipping file names that end in ~
  or contain a . character to avoid causing problems with package manager
  or editor temporary/backup files

also depend on dput for deb-upload

Change-Id: Ie7cee653726633026d5730f94396ef3958b8dd6d
Merge "releases: do not include hostname in sudoers.d" into production