chore(deps-dev): bump undici from 6.21.0 to 6.21.1 (#2107)

Bumps [undici](https://github.com/nodejs/undici) from 6.21.0 to 6.21.1.
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v6.21.0...v6.21.1)

---
updated-dependencies:
- dependency-name: undici
  dependency-type: direct:development
...

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

Author: dependabot[bot]

packages/openapi-fetch/package.json

@@ -82,7 +82,7 @@
     "openapi-typescript-fetch": "^2.0.0",
     "superagent": "^10.1.1",
     "typescript": "^5.7.2",
-    "undici": "^6.21.0",
+    "undici": "^6.21.1",
     "vite": "^6.0.7"
   }
 }