chore(deps): bump undici in /examples/expo-multichain

Bumps [undici](https://github.com/nodejs/undici) from 6.22.0 to 6.23.0.
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v6.22.0...v6.23.0)

---
updated-dependencies:
- dependency-name: undici
  dependency-version: 6.23.0
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]