chore(deps-dev): bump the pytest group in /backend with 2 updates

Bumps the pytest group in /backend with 2 updates: [pytest](https://github.com/pytest-dev/pytest) and [pytest-factoryboy](https://github.com/pytest-dev/pytest-factoryboy).


Updates `pytest` from 8.3.4 to 8.3.5
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.3.4...8.3.5)

Updates `pytest-factoryboy` from 2.1.0 to 2.7.0
- [Changelog](https://github.com/pytest-dev/pytest-factoryboy/blob/master/CHANGES.rst)
- [Commits](pytest-dev/pytest-factoryboy@2.1.0...2.7.0)

---
updated-dependencies:
- dependency-name: pytest
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: pytest
- dependency-name: pytest-factoryboy
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: pytest
...

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

Author: dependabot[bot]

backend/poetry.lock

@@ -53,12 +53,12 @@ django-extensions = "3.2.3"
 factory-boy = "3.3.3"
 ipdb = "0.13.13"
 pdbpp = "0.10.3"
-pytest = "8.3.4"
+pytest = "8.3.5"
 pytest-cov = "6.0.0"
 pytest-django = "4.10.0"
 pytest-env = "1.1.5"
 # needs to stay at 2.1.0 because of wrong interpretation of parameters with "__"
-pytest-factoryboy = "2.1.0"
+pytest-factoryboy = "2.7.0"
 pytest-mock = "3.14.0"
 pytest-randomly = "3.16.0"
 requests-mock = "1.12.1"