chore(deps): bump undici from 6.20.1 to 6.21.1

Bumps [undici](https://github.com/nodejs/undici) from 6.20.1 to 6.21.1.
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v6.20.1...v6.21.1)

---
updated-dependencies:
- dependency-name: undici
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

yarn.lock

@@ -18566,9 +18566,9 @@ __metadata:
   linkType: hard
 
 "undici@npm:^6.18.2":
-  version: 6.20.1
-  resolution: "undici@npm:6.20.1"
-  checksum: 10/68604b53754a95ec89d52efc08fe3e70e333997300c9a5b69f2b6496f1f0f568b2e35adec6442985a7b1d2f7a5648ef5062d1736e4d68082d473cb82177674bc
+  version: 6.21.1
+  resolution: "undici@npm:6.21.1"
+  checksum: 10/eeccc07e9073ae8e755fdc0dc8cdfaa426c01ec6f815425c3ecedba2e5394cea4993962c040dd168951714a82f0d001a13018c3ae3ad4534f0fa97afe425c08d
   languageName: node
   linkType: hard