Bump django from 3.2 to 3.2.2 in /testing/plugins_integration (#8652)

Bumps [django](https://github.com/django/django) from 3.2 to 3.2.2.
- [Release notes](https://github.com/django/django/releases)
- [Commits](django/django@3.2...3.2.2)

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

@@ -1,5 +1,5 @@
 anyio[curio,trio]==3.0.1
-django==3.2
+django==3.2.2
 pytest-asyncio==0.15.1
 pytest-bdd==4.0.2
 pytest-cov==2.11.1