Job for murano plugin doesn't use DEBIAN_FRONTEND variable

[Mikhail Ivanov]

Build python-app-catalog-ui for trusty has failed on CI[1], with following error:

dpkg: error processing package openstack-dashboard-apache (--configure):
 subprocess installed post-installation script returned error exit status 2
dpkg: dependency problems prevent configuration of horizon-vendor-theme:
 horizon-vendor-theme depends on openstack-dashboard-apache; however:
  Package openstack-dashboard-apache is not configured yet.

dpkg: error processing package horizon-vendor-theme (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of openstack-dashboard:
 openstack-dashboard depends on horizon-vendor-theme; however:
  Package horizon-vendor-theme is not configured yet.

dpkg: error processing package openstack-dashboard (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of python-app-catalog-ui:
 python-app-catalog-ui depends on openstack-dashboard (>= 8.0.0); however:
  Package openstack-dashboard is not configured yet.

dpkg: error processing package python-app-catalog-ui (--configure):
 dependency problems - leaving unconfigured
Processing triggers for libc-bin (2.19-0ubuntu6.9) ...
No apport report written because the error message indicates its a followup error from a previous failure.
No apport report written because the error message indicates its a followup error from a previous failure.
No apport report written because MaxReports is reached already
Errors were encountered while processing:
 openstack-dashboard-apache
 horizon-vendor-theme
 openstack-dashboard
 python-app-catalog-ui
E: Sub-process /usr/bin/dpkg returned an error code (1)

This is because CI job for murano-plugin doesn't use DEBIAN_FRONTEND=noninteractive.
After testing it locally in docker container, DEBIAN_FRONTEND was the solution of problem

[1] https://packaging-ci.infra.mirantis.net/job/9.0-pkg-murano-plugin-install-ubuntu-trusty/44/consoleFull