build(deps): Bump django in /testing/plugins_integration (#10195)

Bumps [django](https://github.com/django/django) from 4.0.6 to 4.1.
- [Release notes](https://github.com/django/django/releases)
- [Commits](django/django@4.0.6...4.1)

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

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

testing/plugins_integration/requirements.txt

@@ -1,5 +1,5 @@
 anyio[curio,trio]==3.6.1
-django==4.0.6
+django==4.1
 pytest-asyncio==0.18.3
 pytest-bdd==6.0.1
 pytest-cov==3.0.0