Bump django-debug-toolbar from 3.2 to 3.2.1 in /requirements (#915)

Bumps [django-debug-toolbar](https://github.com/jazzband/django-debug-toolbar) from 3.2 to 3.2.1.
- [Release notes](https://github.com/jazzband/django-debug-toolbar/releases)
- [Changelog](https://github.com/jazzband/django-debug-toolbar/blob/main/docs/changes.rst)
- [Commits](django-commons/django-debug-toolbar@3.2...3.2.1)

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

Author: dependabot[bot]

requirements/requirements-testing.txt

@@ -1,4 +1,4 @@
-django-debug-toolbar==3.2
+django-debug-toolbar==3.2.1
 factory-boy==3.2.0
 Faker==6.6.0
 pytest==6.2.2