Merge branch 'empty_line_test' into 'master'

fix: add tests for empty lines in templates

See merge request https://gitlab.com/gitlab-org/cluster-integration/auto-deploy-image/-/merge_requests/366



Merged-by: João Alexandre Cunha <j.a.cunha@gmail.com>
Approved-by: João Alexandre Cunha <j.a.cunha@gmail.com>
Approved-by: Hordur Freyr Yngvason <hfyngvason@gitlab.com>
Reviewed-by: Martin Schurz <2090677-schurzi@users.noreply.gitlab.com>
Reviewed-by: Hordur Freyr Yngvason <hfyngvason@gitlab.com>
Co-authored-by: Martin Schurz <Martin.Schurz@telekom.de>