Bump pytest from 8.3.5 to 9.0.0

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.3.5 to 9.0.0.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.3.5...9.0.0)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements/ci.txt

@@ -1,4 +1,4 @@
 mypy==1.18.2
-pytest==8.3.5
+pytest==9.0.0
 pytest-aiohttp==1.1.0
 pytest-cov==7.0.0