chore(deps): bump pytest in /appengine/flexible/django_cloudsql (#14064)

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.2.0 to 9.0.3.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.2.0...9.0.3)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.3
  dependency-type: direct:production
...

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

Author: dependabot[bot]

appengine/flexible/django_cloudsql/requirements-test.txt

@@ -1,2 +1,2 @@
-pytest==8.2.0
+pytest==9.0.3
 pytest-django==4.9.0