Bump the npm_and_yarn group across 1 directory with 2 updates (#555)

Bumps the npm_and_yarn group with 2 updates in the / directory: [brace-expansion](https://github.com/juliangruber/brace-expansion) and [webpack-dev-server](https://github.com/webpack/webpack-dev-server).


Updates `brace-expansion` from 1.1.11 to 1.1.12
- [Release notes](https://github.com/juliangruber/brace-expansion/releases)
- [Commits](juliangruber/brace-expansion@1.1.11...v1.1.12)

Updates `webpack-dev-server` from 4.15.1 to 4.15.2
- [Release notes](https://github.com/webpack/webpack-dev-server/releases)
- [Changelog](https://github.com/webpack/webpack-dev-server/blob/v4.15.2/CHANGELOG.md)
- [Commits](webpack/webpack-dev-server@v4.15.1...v4.15.2)

---
updated-dependencies:
- dependency-name: brace-expansion
  dependency-version: 1.1.12
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: webpack-dev-server
  dependency-version: 4.15.2
  dependency-type: indirect
  dependency-group: npm_and_yarn
...

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Author: dependabot[bot]