Update dependency undici to v6.5.0 (#696)

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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)) | [`6.4.0` -> `6.5.0`](https://renovatebot.com/diffs/npm/undici/6.4.0/6.5.0) | [![age](https://developer.mend.io/api/mc/badges/age/npm/undici/6.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/undici/6.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/undici/6.4.0/6.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/undici/6.4.0/6.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v6.5.0`](https://togithub.com/nodejs/undici/releases/tag/v6.5.0)

[Compare Source](https://togithub.com/nodejs/undici/compare/v6.4.0...v6.5.0)

#### What's Changed

-   build(deps-dev): bump jsdom from 23.2.0 to 24.0.0 by [@&#8203;dependabot](https://togithub.com/dependabot) in [nodejs/undici#2632
-   feat: Implement EventSource by [@&#8203;Uzlopak](https://togithub.com/Uzlopak) in [nodejs/undici#2608
-   fix: readable body by [@&#8203;ronag](https://togithub.com/ronag) in [nodejs/undici#2642

**Full Changelog**: nodejs/undici@v6.4.0...v6.5.0

</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": "6.4.0",
+    "undici": "6.5.0",
     "unistore": "3.5.2",
     "util": "0.12.5",
     "uuid": "9.0.1",