Bump webpack-merge from 5.7.2 to 5.7.3
Bump webpack-merge from 5.7.2 to 5.7.3

Bumps [webpack-merge](https://github.com/survivejs/webpack-merge) from 5.7.2 to 5.7.3.
- [Release notes](https://github.com/survivejs/webpack-merge/releases)
- [Changelog](https://github.com/survivejs/webpack-merge/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/survivejs/webpack-merge/compare/v5.7.2...v5.7.3)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
camptocamp/ngeo,camptocamp/ngeo,camptocamp/ngeo,camptocamp/ngeo,camptocamp/ngeo