fix(ci): use Vercel CLI compatible with pnpm 12

[yamcodes]

Update all www deployment workflows from Vercel CLI 54.7.1 to pinned 59.16.0.

Run 34621903135 failed because Vercel CLI 54 passed --unsafe-perm to pnpm 12; 59.16.0 is compatible with pnpm 12.

[pullfrog]

• Checkout PR fix(ci): use Vercel CLI compatible with pnpm 12 #1838 and read the full raw diff
• Read rolling PR summary snapshot
• Triage: understand the CI change (Vercel CLI pin for pnpm 12)
• Investigate surrounding context (workflow files, pnpm 12 compat)
• Dispatch specialists if unresolved questions remain
• Aggregate findings and submit review
• Update rolling PR summary snapshot

  ^{｜ View workflow run ｜ via Pullfrog ｜ Using DeepSeek Flash (free via Pullfrog for OSS) ｜ 𝕏}

[changeset-bot]

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Latest commit: 2defb08

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