Bump undici from 8.11.2 to 8.12.3 in /frontend

Bumps [undici](https://github.com/nodejs/undici) from 8.11.2 to 8.12.3.
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](https://github.com/nodejs/undici/compare/v8.11.2...v8.12.3)

---
updated-dependencies:
- dependency-name: undici
  dependency-version: 8.12.3
  dependency-type: indirect
...

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

frontend/package-lock.json

@@ -7104,9 +7104,9 @@
       "license": "MIT"
     },
     "node_modules/undici": {
-      "version": "8.11.2",
-      "resolved": "https://registry.npmjs.org/undici/-/undici-8.11.2.tgz",
-      "integrity": "sha512-u4UB2/IrKdU6lFxumHmmo1a3fCQO5tzQllRorfoRS63txhrB7xTpSn1PftwC4qEHkOaqP95fCWW4lJzwErwzhQ==",
+      "version": "8.12.3",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-8.12.3.tgz",
+      "integrity": "sha512-+fdndUTwBP86cVjihTp21hZHo7d6oj1c/47XPA3lL8mM0XHs+C4EkcjmgRsFnFk2f/UONGDy9ItBItmXsLOQHw==",
       "dev": true,
       "license": "MIT",
       "engines": {