Bump webpack from 5.21.1 to 5.21.2

Bumps [webpack](https://github.com/webpack/webpack) from 5.21.1 to 5.21.2.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](https://github.com/webpack/webpack/compare/v5.21.1...v5.21.2

)

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