build: bump pyfakefs from 5.8.0 to 5.9.3

Bumps [pyfakefs](https://github.com/pytest-dev/pyfakefs) from 5.8.0 to 5.9.3.
- [Release notes](https://github.com/pytest-dev/pyfakefs/releases)
- [Changelog](https://github.com/pytest-dev/pyfakefs/blob/main/CHANGES.md)
- [Commits](pytest-dev/pyfakefs@v5.8.0...v5.9.3)

---
updated-dependencies:
- dependency-name: pyfakefs
  dependency-version: 5.9.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -56,7 +56,7 @@ tests = [
   "grpcio==1.71.2",
   "grpcio-health-checking==1.71.2",
   "hypothesis==6.135.10",
-  "pyfakefs==5.8.0",
+  "pyfakefs==5.9.3",
   "pytest==8.4.0",
   "pytest-cov==6.1.1",
 ]