Bump memfs from 4.38.2 to 4.50.0

Bumps [memfs](https://github.com/streamich/memfs) from 4.38.2 to 4.50.0.
- [Release notes](https://github.com/streamich/memfs/releases)
- [Changelog](https://github.com/streamich/memfs/blob/master/CHANGELOG.md)
- [Commits](streamich/memfs@v4.38.2...v4.50.0)

---
updated-dependencies:
- dependency-name: memfs
  dependency-version: 4.50.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]