SCRUM#230: add job on .gitlab-ci.yml to deploy package to stable repository.

2 jobs for issue/230 in 14 seconds (queued for 3 seconds)
Name Stage Failure
failed
build Build There is an unknown failure, please try again
head: cannot open 'package/debian/changelog' for reading: No such file or directory
tar: package/*: Cannot stat: No such file or directory
tar: Exiting with failure status due to previous errors
./.build.sh: line 13: cd: package: No such file or directory
debuild: fatal error at line 660:
cannot find readable debian/changelog anywhere!
Are you in the source code tree?
mv: cannot move 'build' to a subdirectory of itself, 'build/build'
ERROR: Job failed: exit code 1