Bump undici from 6.3.0 to 6.4.0 (#61)

Bumps [undici](https://github.com/nodejs/undici) from 6.3.0 to 6.4.0.
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v6.3.0...v6.4.0)

---
updated-dependencies:
- dependency-name: undici
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -35,7 +35,7 @@
         "eslint-plugin-prettier": "^5.1.3",
         "better-sqlite3": "^9.3.0",
         "typescript": "^5.3.3",
-        "undici": "^6.3.0",
+        "undici": "^6.4.0",
         "prettier": "^3.2.2",
         "jest": "^28.1.3",
         "miniflare": "^3.20231218.1",