Bump the npm_and_yarn group across 1 directory with 3 updates

Bumps the npm_and_yarn group with 3 updates in the / directory: [brace-expansion](https://github.com/juliangruber/brace-expansion), [flatted](https://github.com/WebReflection/flatted) and [undici](https://github.com/nodejs/undici).


Updates `brace-expansion` from 1.1.12 to 1.1.18
- [Release notes](https://github.com/juliangruber/brace-expansion/releases)
- [Commits](juliangruber/brace-expansion@v1.1.12...v1.1.18)

Updates `flatted` from 3.3.3 to 3.4.4
- [Commits](WebReflection/flatted@v3.3.3...v3.4.4)

Updates `undici` from 5.29.0 to 6.28.0
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v5.29.0...v6.28.0)

---
updated-dependencies:
- dependency-name: brace-expansion
  dependency-version: 1.1.18
  dependency-type: indirect
- dependency-name: flatted
  dependency-version: 3.4.4
  dependency-type: indirect
- dependency-name: undici
  dependency-version: 6.28.0
  dependency-type: indirect
...

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Author: dependabot[bot]