Bump pytest-xdist from 3.6.1 to 3.7.0

Bumps [pytest-xdist](https://github.com/pytest-dev/pytest-xdist) from 3.6.1 to 3.7.0.
- [Release notes](https://github.com/pytest-dev/pytest-xdist/releases)
- [Changelog](https://github.com/pytest-dev/pytest-xdist/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-xdist@v3.6.1...v3.7.0)

---
updated-dependencies:
- dependency-name: pytest-xdist
  dependency-version: 3.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -56,7 +56,7 @@ pytest-rerunfailures==15.1
     # via -r requirements.in
 pytest-timeout==2.4.0
     # via -r requirements.in
-pytest-xdist==3.6.1
+pytest-xdist==3.7.0
     # via -r requirements.in
 python-dateutil==2.8.2
     # via kubernetes