Bump pytest from 8.2.1 to 8.2.2 in /backend

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.2.1 to 8.2.2.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.2.1...8.2.2)

---
updated-dependencies:
- dependency-name: pytest
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

backend/requirements.txt

@@ -17,7 +17,7 @@ pathspec==0.12.1
 platformdirs==4.2.2
 pluggy==1.5.0
 pylint==3.1.1
-pytest==8.2.1
+pytest==8.2.2
 six==1.16.0
 tomlkit==0.12.5
 Werkzeug==3.0.3