chore(deps): bump django in /kubernetes_engine/django_tutorial (#7504)

Bumps [django](https://github.com/django/django) from 4.0.1 to 4.0.2.
- [Release notes](https://github.com/django/django/releases)
- [Commits](django/django@4.0.1...4.0.2)

---
updated-dependencies:
- dependency-name: django
  dependency-type: direct:production
...

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

kubernetes_engine/django_tutorial/requirements.txt

@@ -1,4 +1,4 @@
-Django==4.0.1
+Django==4.0.2
 # Uncomment the mysqlclient requirement if you are using MySQL rather than
 # PostgreSQL. You must also have a MySQL client installed in that case.
 #mysqlclient==1.4.1