chore: upgrade undici from 6.21.0 to 6.21.1 (#2206)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-UNDICI-8641354

Co-authored-by: snyk-bot <[email protected]>

Author: CharlieC3

package-lock.json

@@ -147,7 +147,7 @@
     "strict-event-emitter-types": "2.0.0",
     "tiny-secp256k1": "2.2.1",
     "ts-unused-exports": "7.0.3",
-    "undici": "6.21.0",
+    "undici": "6.21.1",
     "uuid": "8.3.2",
     "ws": "7.5.10",
     "zone-file": "2.0.0-beta.3"