fix(deps): update dependency ai to v2.2.18

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ai (source)	2.2.17 -> 2.2.18

---

Release Notes

vercel/ai (ai)

### [`v2.2.18`](https://togithub.com/vercel/ai/releases/tag/ai%402.2.18) [Compare Source](https://togithub.com/vercel/ai/compare/ai@2.2.17...ai@2.2.18) ##### Patch Changes - [`0bd27f6`](https://togithub.com/vercel/ai/commit/0bd27f6): react/use-chat: allow client-side handling of function call without following response

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.

[vercel[bot]]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
opendata-bridge	✅ Ready (Inspect)	Visit Preview		Oct 25, 2023 0:54am
opendata-bridge-pro	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 25, 2023 0:54am