Merge branch 'fix-issue-257' into 'master'

fix: create pull secret if a deploy token exists

Closes #257

See merge request https://gitlab.com/gitlab-org/cluster-integration/auto-deploy-image/-/merge_requests/352



Merged-by: Tiger Watson <twatson@gitlab.com>
Approved-by: Hordur Freyr Yngvason <hfyngvason@gitlab.com>
Approved-by: Tiger Watson <twatson@gitlab.com>
Co-authored-by: Hugo "ThePooN" Denizart <thepoon@cartooncraft.fr>