* ci: remove dead BASE_TAGS reference in release bake step
steps.determine-version doesn't exist in docker-build; the expression
resolves to empty string. The HCL default (testing) would have
applied, but it's moot - the bake uses push-by-digest=true so tags are
only set in merge-manifests. Dead code.
* ci: replace unsecured curl hadolint download with an official action
hadolint/hadolint-action uses a Docker-based runner with hadolint
pre-bundled in ghcr.io/hadolint/hadolint:v2.14.0-debian,so no binary
downloaded at runtime. Pinning the action to a commit SHA covers the
Dockerfile that specifies the image version, closing the supply-chain
gap from the previous unverified curl | sudo install.
Split {debian,alpine}: the action takes a single dockerfile argument,
so debian and alpine are linted separately.
* ci: pin ubuntu-latest to ubuntu-24.04 in merge-manifests and zizmor
ubuntu-latest is a moving target that can silently change the runner OS
on the next GitHub-side update. All other jobs in this repo already pin
to ubuntu-24.04; this makes merge-manifests and zizmor consistent.
* ci: return BASE_TAGS - it's needed for bake step
Denis Pisarev
64d28ab66e