chore: bump undici from 6.21.0 to 7.0.0 in /examples/controllers

Bumps [undici](https://github.com/nodejs/undici) from 6.21.0 to 7.0.0.
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v6.21.0...v7.0.0)

---
updated-dependencies:
- dependency-name: undici
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

examples/controllers/package.json

@@ -24,7 +24,7 @@
     "jest-ts-webcompat-resolver": "^1.0.0",
     "ts-jest": "^29.2.5",
     "typescript": "^5.6.2",
-    "undici": "^6.19.8"
+    "undici": "^7.0.0"
   },
   "jest-junit": {
     "outputDirectory": "../../test-results",