ROCKTAKEY

Update roquix's packaged openai/codex release. Use when bumping `channel/roquix/packages/codex.scm`, regenerating `channel/roquix/packages/rust-crates.scm` from upstream `codex-rs/Cargo.lock`, fixing `scripts/update-codex.sh` or `.github/workflows/update-codex.yml`, or validating the bump with `guix build` and the existing `verify-guix-pull` workflow.