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Garrett Delfosse 5573190530 fix(.github/workflows): restore mise tool setup in tag-and-release (#26937)
The `tag-and-release` workflow fails at startup with `Can't find
'action.yml', 'action.yaml' or 'Dockerfile' under
.../.github/actions/setup-go`. #26422 reintroduced stale references to
the `./.github/actions/setup-go` and `./.github/actions/setup-node`
composite actions, both of which were removed in #25727 when CI migrated
shared tool setup to `mise`.

This replaces both with the `setup-mise` pattern already used elsewhere
in the same workflow. The `prepare-release` job now installs `go` via
`setup-mise` (dropping the old `use-cache: false`, since Go caching is
now opt-in through the `go-cache` action). The `update-docs` job
installs `node pnpm` via `setup-mise` and adds `pnpm-install` so
`scripts/update-release-calendar.sh` still has the dependencies it needs
for `make fmt/markdown`.

`actionlint` and the `pre-commit` hook pass locally.

<details>
<summary>Root cause and decision log</summary>

**Symptom:** `tag-and-release.yaml` references
`./.github/actions/setup-go`, but that directory has no
`action.yml`/`action.yaml`/`Dockerfile`.

**How it broke:**

- #25727 (`ci: refactor CI to use mise for shared tool setup`) deleted
`.github/actions/setup-go/action.yaml` and
`.github/actions/setup-node/action.yaml`, migrating every workflow to
`./.github/actions/setup-mise`.
- #26422 (`feat: add dry-run flag via CommandExecutor interface`)
rewrote `tag-and-release.yaml`. It adopted `setup-mise` in one job but
left two stale references: `setup-go` (prepare-release) and `setup-node`
(update-docs), likely a rebase/merge artifact.

**Scope check:** Swept every workflow for local-action references
pointing at missing directories. The only genuine misses were `setup-go`
and `setup-node`. `create-task-action` is an external action checked out
at runtime via `actions/checkout` (not a repo-local action), and
`embedded-pg-cache`/`test-cache` resolve to existing `download`/`upload`
subdirectories.

**Mapping decisions:**

- `setup-go` (`use-cache: false`) to `setup-mise` with `install-args:
"go"`. The old action also installed `gotestsum`/`mtimehash` and
pre-warmed modules, but `prepare-release` only runs `go run
./scripts/release-action`, so `go` alone is sufficient. Caching stays
off, matching the original `use-cache: false`.
- `setup-node` to `setup-mise` with `install-args: "node pnpm"` plus
`pnpm-install`. The old action provided node + pnpm and installed
`node_modules`; `make fmt/markdown` (invoked at the end of the calendar
script) needs `node_modules/.installed` and `pnpm exec
markdown-table-formatter`.
</details>

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Generated by Coder Agents on behalf of @f0ssel.
2026-07-01 23:13:28 +02:00
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