Bump pytest from 8.4.2 to 9.0.0

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.4.2 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@8.4.2...9.0.0)

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

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

Author: dependabot[bot]

dev-requirements.txt

@@ -2,7 +2,7 @@ build==1.3.0
 jupyter_packaging==0.12.3
 flaky==3.8.1
 pre-commit==4.3.0
-pytest==8.4.2
+pytest==9.0.0
 # selenium==4.11.2
 selenium==4.38.0
 traitlets==5.14.3