Bump pyfakefs from 5.7.2 to 5.7.3

Bumps [pyfakefs](https://github.com/pytest-dev/pyfakefs) from 5.7.2 to 5.7.3.
- [Release notes](https://github.com/pytest-dev/pyfakefs/releases)
- [Changelog](https://github.com/pytest-dev/pyfakefs/blob/main/CHANGES.md)
- [Commits](pytest-dev/pyfakefs@v5.7.2...v5.7.3)

---
updated-dependencies:
- dependency-name: pyfakefs
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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