web: bump undici from 6.21.0 to 6.21.1 in /web (#12755)

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

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

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

web/package-lock.json

@@ -21468,10 +21468,11 @@
             }
         },
         "node_modules/undici": {
-            "version": "6.21.0",
-            "resolved": "https://registry.npmjs.org/undici/-/undici-6.21.0.tgz",
-            "integrity": "sha512-BUgJXc752Kou3oOIuU1i+yZZypyZRqNPW0vqoMPl8VaoalSfeR0D8/t4iAS3yirs79SSMTxTag+ZC86uswv+Cw==",
+            "version": "6.21.1",
+            "resolved": "https://registry.npmjs.org/undici/-/undici-6.21.1.tgz",
+            "integrity": "sha512-q/1rj5D0/zayJB2FraXdaWxbhWiNKDvu8naDT2dl1yTlvJp4BLtOcp2a5BvgGNQpYYJzau7tf1WgKv3b+7mqpQ==",
             "dev": true,
+            "license": "MIT",
             "engines": {
                 "node": ">=18.17"
             }