build(deps): Bump pytest-django in /testing/plugins_integration (#11592)

Bumps [pytest-django](https://github.com/pytest-dev/pytest-django) from 4.5.2 to 4.6.0.
- [Release notes](https://github.com/pytest-dev/pytest-django/releases)
- [Changelog](https://github.com/pytest-dev/pytest-django/blob/master/docs/changelog.rst)
- [Commits](pytest-dev/pytest-django@v4.5.2...v4.6.0)

---
updated-dependencies:
- dependency-name: pytest-django
  dependency-type: direct:production
  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]

testing/plugins_integration/requirements.txt

@@ -3,7 +3,7 @@ django==4.2.7
 pytest-asyncio==0.21.1
 pytest-bdd==7.0.0
 pytest-cov==4.1.0
-pytest-django==4.5.2
+pytest-django==4.6.0
 pytest-flakes==4.0.5
 pytest-html==4.1.0
 pytest-mock==3.12.0