Update dependency undici to v6.6.0 (#710)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [undici](https://undici.nodejs.org) ([source](https://togithub.com/nodejs/undici)) | [`6.5.0` -> `6.6.0`](https://renovatebot.com/diffs/npm/undici/6.5.0/6.6.0) | [![age](https://developer.mend.io/api/mc/badges/age/npm/undici/6.6.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/undici/6.6.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/undici/6.5.0/6.6.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/undici/6.5.0/6.6.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>nodejs/undici (undici)</summary>

### [`v6.6.0`](https://togithub.com/nodejs/undici/releases/tag/v6.6.0)

[Compare Source](https://togithub.com/nodejs/undici/compare/v6.5.0...v6.6.0)

#### What's Changed

-   add webSocket example by [@&#8203;mertcanaltin](https://togithub.com/mertcanaltin) in [https://github.com/nodejs/undici/pull/2626](https://togithub.com/nodejs/undici/pull/2626)
-   chore: remove atomic-sleep as dev dependency by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2648](https://togithub.com/nodejs/undici/pull/2648)
-   chore: remove semver as dev dependency by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2646](https://togithub.com/nodejs/undici/pull/2646)
-   chore: remove table as dev dependency by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2649](https://togithub.com/nodejs/undici/pull/2649)
-   chore: remove delay as dev dependency by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2647](https://togithub.com/nodejs/undici/pull/2647)
-   chore: reduce noise in test-logs test/issue-2349.js by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2655](https://togithub.com/nodejs/undici/pull/2655)
-   chore: fix faketimer warning in test/request-timeout.js by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2656](https://togithub.com/nodejs/undici/pull/2656)
-   chore: reduce noise in test logs test/client-node-max-header-size.js by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2654](https://togithub.com/nodejs/undici/pull/2654)
-   refactor: use fromInnerResponse by [@&#8203;tsctx](https://togithub.com/tsctx) in [https://github.com/nodejs/undici/pull/2635](https://togithub.com/nodejs/undici/pull/2635)
-   fix: support deflate raw responses by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2650](https://togithub.com/nodejs/undici/pull/2650)
-   Support building for externally shared js builtins by [@&#8203;mochaaP](https://togithub.com/mochaaP) in [https://github.com/nodejs/undici/pull/2643](https://togithub.com/nodejs/undici/pull/2643)
-   fix: typo clampAndCoarsenConnectionTimingInfo by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2653](https://togithub.com/nodejs/undici/pull/2653)
-   chore: use 'node:'-prefix for requiring node core modules by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2662](https://togithub.com/nodejs/undici/pull/2662)
-   build(deps-dev): bump husky from 8.0.3 to 9.0.7 by [@&#8203;dependabot](https://togithub.com/dependabot) in [https://github.com/nodejs/undici/pull/2667](https://togithub.com/nodejs/undici/pull/2667)
-   build(deps-dev): bump cronometro from 1.2.0 to 2.0.2 by [@&#8203;dependabot](https://togithub.com/dependabot) in [https://github.com/nodejs/undici/pull/2668](https://togithub.com/nodejs/undici/pull/2668)
-   remove timers/promises import by [@&#8203;KhafraDev](https://togithub.com/KhafraDev) in [https://github.com/nodejs/undici/pull/2665](https://togithub.com/nodejs/undici/pull/2665)
-   chore: fix various codesmells by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2669](https://togithub.com/nodejs/undici/pull/2669)
-   chore: remove this alias in agent.js by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2671](https://togithub.com/nodejs/undici/pull/2671)
-   chore: use optional chaining by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2666](https://togithub.com/nodejs/undici/pull/2666)
-   chore: small perf improvements by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2661](https://togithub.com/nodejs/undici/pull/2661)
-   implement spec changes from a while ago by [@&#8203;KhafraDev](https://togithub.com/KhafraDev) in [https://github.com/nodejs/undici/pull/2676](https://togithub.com/nodejs/undici/pull/2676)
-   websocket: fix close when no closing code is received by [@&#8203;KhafraDev](https://togithub.com/KhafraDev) in [https://github.com/nodejs/undici/pull/2680](https://togithub.com/nodejs/undici/pull/2680)
-   fix: make ci less flaky by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [https://github.com/nodejs/undici/pull/2684](https://togithub.com/nodejs/undici/pull/2684)

#### New Contributors

-   [@&#8203;mochaaP](https://togithub.com/mochaaP) made their first contribution in [https://github.com/nodejs/undici/pull/2643](https://togithub.com/nodejs/undici/pull/2643)

**Full Changelog**: nodejs/undici@v6.5.0...v6.6.0

</details>

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packages/next/package.json

@@ -279,7 +279,7 @@
     "timers-browserify": "2.0.12",
     "tty-browserify": "0.0.1",
     "ua-parser-js": "1.0.37",
-    "undici": "6.5.0",
+    "undici": "6.6.0",
     "unistore": "3.5.2",
     "util": "0.12.5",
     "uuid": "9.0.1",