feat(auto-build-image): enable commitlint monorepo

Same principle as !737 (merged), but for auto-deploy-image.

Will prevent two MRs being opened for each commitlint update, eg:

• feat(deps): update dependency @commitlint/cli t... (gitlab-org/cluster-integration/auto-build-image!150 - merged)
• feat(deps): update dependency @commitlint/confi... (gitlab-org/cluster-integration/auto-build-image!151 - merged)