fix(ci): refresh create-turbo drift snapshot

[farce1]

Summary

Refreshes .github/snapshots/create-turbo.txt to the current create-turbo@latest --help output, resolving the drift detected by the upstream-drift workflow.

Upstream change captured:

• -m, --package-manager choices grew from npm, yarn, pnpm, bun to also include nub and aube

The odd-looking nub/aube entries were verified against the published create-turbo@2.10.4 bundle — choices([npm,yarn,pnpm,bun,nub,aube]) is genuinely in upstream's shipped code, not a CI artifact.

Flag mapping review

tinkerise's turbo entry maps no-install (--skip-install), package-manager (-m, value passed through), and no-git — all unaffected. tinkerise's own unified package-manager choices intentionally stay npm/yarn/pnpm/bun.

Verified locally: fresh npx create-turbo@latest --help capture normalizes identically to the new snapshot (empty diff via .github/scripts/normalize-help.mjs).

Closes #72