Update fs-extra requirement from ^7.0.0 to ^8.0.0
Update fs-extra requirement from ^7.0.0 to ^8.0.0

Updates the requirements on [fs-extra](https://github.com/jprichardson/node-fs-extra) to permit the latest version.
- [Release notes](https://github.com/jprichardson/node-fs-extra/releases)
- [Changelog](https://github.com/jprichardson/node-fs-extra/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jprichardson/node-fs-extra/compare/7.0.0...8.0.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
LeoColomb/generator-latex