Bump pytest from 8.4.2 to 9.0.1 in /requirements

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.4.2 to 9.0.1.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/8.4.2...9.0.1)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.1
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

requirements/dev.txt

@@ -2,7 +2,7 @@
 -r prod.txt
 
 # Testing
-pytest==8.4.2
+pytest==9.0.1
 pytest-cov==7.0.0
 WebTest==3.0.7
 requests-mock==1.12.1