Bump pytest from 8.1.1 to 8.3.1

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.1.1 to 8.3.1.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.1.1...8.3.1)

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

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

requirements-test.txt

@@ -1,3 +1,3 @@
 freezefrog==0.4.1
 psutil==5.9.8
-pytest==8.1.1
+pytest==8.3.1