Bump pytest-xdist from 3.3.1 to 3.4.0 in /test

Bumps [pytest-xdist](https://github.com/pytest-dev/pytest-xdist) from 3.3.1 to 3.4.0.
- [Changelog](https://github.com/pytest-dev/pytest-xdist/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest-xdist/compare/v3.3.1...v3.4.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

test/requirements.txt

@@ -1,6 +1,6 @@
 pyyaml == 6.0.1
 pytest == 7.4.3
-pytest-xdist == 3.3.1
+pytest-xdist == 3.4.0
 pytest-testinfra == 9.0.0
 tox == 4.11.3