Merge branch 'master' into 'master'

Added `---` separator to customResources template

See merge request https://gitlab.com/gitlab-org/cluster-integration/auto-deploy-image/-/merge_requests/378



Merged-by: Hordur Freyr Yngvason <hfyngvason@gitlab.com>
Approved-by: Hordur Freyr Yngvason <hfyngvason@gitlab.com>
Co-authored-by: Wout <wout@thenines.be>