docs: refresh MAINTENANCE_RELEASE.md — stale since 2026-07-16

[ulises-jeremias]

Summary

docs/MAINTENANCE_RELEASE.md was last updated on 2026-07-16 (61 days ago), exceeding the 60-day freshness threshold in the maintenance runbook.

What changed since the last update

Since 2026-07-16, the following release-relevant changes have happened:

• v0.3.0 released (2026-09-10) — new CLI features (--json, --category, --config, --skip-install, Rich spinner, shell completion docs) shipped successfully. The release document should be verified against the actual v0.3.0 release workflow.
• Docker GitHub Actions bumped — docker/setup-qemu-action 4.2→4.3, docker/setup-buildx-action 4.2→4.3, docker/login-action 4.5→4.6. The doc may reference old action versions or constraints.
• MegaLinter upgraded from v9 to v10 — this affects the CI gate described in the publish sequence.
• Two releases in this period (0.2.12 and 0.3.0) with a 6-week gap between them. The doc should reflect any lessons from the actual release cadence.

Suggested refreshes

1. Verify the PyPI OIDC publish sequence steps match the current .github/workflows/release.yml.
2. Update any Docker action version references or minimum version notes.
3. Note the Docker race fix status — confirm whether the CDN sync wait is still required or was resolved upstream.

Acceptance criteria

• PyPI OIDC publish sequence matches current release.yml
• Docker action versions and race-fix notes are current
• v0.3.0 release experience is reflected (any new friction points or improvements)