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## Problem Every `docker.yml` run on `main` has failed since [#6781](https://github.com/block/buzz/pull/6781) merged. That PR added a "Create deployment eligibility predicate" step to the `merge` job, which runs `jq` against `$GITHUB_WORKSPACE/scripts/create-deployment-eligibility-predicate.jq`. But the `merge` job has no `actions/checkout` step — the workspace is empty, so `jq` can't open the file and exits `2` (`jq: Could not open ... No such file or directory`). The `build` and `qualify` jobs each check out the source; `merge` never needed one until this step was added. ## Fix - `.github/workflows/docker.yml`: add `actions/checkout` (same pinned SHA as the other jobs, `df4cb1c` / v6.0.3) as the first step of the `merge` job. - `scripts/test-relay-image-eligibility-workflow.sh`: guard the regression by asserting the `merge` job checks out the source before building the predicate. ## Verification CI cannot exercise the `merge` job on a pull request — the job is gated `if: github.event_name != 'pull_request'`, so it only runs on push to `main`. The proof is the root cause (missing checkout for a step that reads a repo file) plus the eligibility workflow test: `scripts/test-relay-image-eligibility-workflow.sh` passes with the fix and fails with the new guard's specific message (`merge job must check out the source before building the eligibility predicate`) when the checkout is removed. Signed-off-by: Will Pfleger <pfleger.will@gmail.com>