Bump memfs from 2.8.0 to 2.15.5
Bump memfs from 2.8.0 to 2.15.5

Bumps [memfs](https://github.com/streamich/memfs) from 2.8.0 to 2.15.5.
- [Release notes](https://github.com/streamich/memfs/releases)
- [Changelog](https://github.com/streamich/memfs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/streamich/memfs/commits/v2.15.5)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
marc136/node-folder-hash