chore(deps): bump undici from 6.19.8 to 6.21.1

Bumps [undici](https://github.com/nodejs/undici) from 6.19.8 to 6.21.1.
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v6.19.8...v6.21.1)

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

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

Author: dependabot[bot]

yarn.lock

@@ -20551,9 +20551,9 @@ __metadata:
   linkType: hard
 
 "undici@npm:^6.19.5":
-  version: 6.19.8
-  resolution: "undici@npm:6.19.8"
-  checksum: 10/19ae4ba38b029a664d99fd330935ef59136cf99edb04ed821042f27b5a9e84777265fb744c8a7abc83f2059afb019446c69a4ebef07bbc0ed6b2de8d67ef4090
+  version: 6.21.1
+  resolution: "undici@npm:6.21.1"
+  checksum: 10/eeccc07e9073ae8e755fdc0dc8cdfaa426c01ec6f815425c3ecedba2e5394cea4993962c040dd168951714a82f0d001a13018c3ae3ad4534f0fa97afe425c08d
   languageName: node
   linkType: hard