Bump pytest-timeout from 2.2.0 to 2.3.1 (zarr-developers#1697)

Bumps [pytest-timeout](https://github.com/pytest-dev/pytest-timeout) from 2.2.0 to 2.3.1.
- [Commits](pytest-dev/pytest-timeout@2.2.0...2.3.1)

---
updated-dependencies:
- dependency-name: pytest-timeout
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements_dev_optional.txt

@@ -16,7 +16,7 @@ pymongo==4.6.2
 coverage
 pytest-cov==4.1.0
 pytest-doctestplus==1.2.0
-pytest-timeout==2.2.0
+pytest-timeout==2.3.1
 h5py==3.10.0
 fsspec==2023.12.2
 s3fs==2023.12.2