fix(aidd-orchestrator): async-dev workflow template pins actions/checkout@v4 (Node 20 deprecated) #729

What

plugins/aidd-orchestrator/skills/00-async-dev/assets/setup/workflow-template.yml uses actions/checkout@v4 at three steps (lines 38, 152, 247). GitHub runners now force Node 24, and actions/checkout@v4 targets Node 20, so every rendered aidd-async workflow run logs:

Node.js 20 is deprecated. The following actions target Node.js 20 but are being
forced to run on Node.js 24: actions/checkout@v4
https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Not fatal today, but it will break once the runners drop the Node 20 shim, and it adds noise to every dispatch/run/review job.

Fix

Bump the three occurrences to actions/checkout@v5 (runs on Node 24 natively; the inputs used here — ref, fetch-depth, sparse-checkout, sparse-checkout-cone-mode — are unchanged in v5).

The same three lines appear in the test fixture cli/tests/fixtures/framework-real/plugins/aidd-async-dev/skills/01-setup/assets/workflow-template.yml — worth bumping together if that fixture is meant to mirror the real template.

Context

Hit while setting up async-dev on a downstream repo (plugin aidd-orchestrator@2.2.1). Patched locally by rewriting the rendered .github/workflows/aidd-async.yml, but the template is the source.