build(deps): Bump django from 4.2.7 to 5.0 in /testing/plugins_integration (#11692)

* build(deps): Bump django in /testing/plugins_integration

Bumps [django](https://github.com/django/django) from 4.2.7 to 5.0.
- [Commits](https://github.com/django/django/compare/4.2.7...5.0)

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

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

* Bump python version on the plugin job

https://github.com/pytest-dev/pytest/pull/11692#issuecomment-1849963332

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Pierre Sassoulas <pierre.sassoulas@gmail.com>

.github/workflows/test.yml

@@ -156,7 +156,7 @@ jobs:
             tox_env: "py312-xdist"
 
           - name: "plugins"
-            python: "3.9"
+            python: "3.12"
             os: ubuntu-latest
             tox_env: "plugins"
 

testing/plugins_integration/requirements.txt

@@ -1,5 +1,5 @@
 anyio[curio,trio]==4.1.0
-django==4.2.7
+django==5.0
 pytest-asyncio==0.23.2
 pytest-bdd==7.0.1
 pytest-cov==4.1.0