Bump pytest from 8.4.2 to 9.0.0 (#2298)

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:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

poetry.lock

@@ -50,7 +50,7 @@ _ = "returns.contrib.hypothesis._entrypoint:_setup_hook"
 python = "^3.10"
 
 typing-extensions = ">=4.0,<5.0"
-pytest = { version = "^8.0", optional = true }
+pytest = { version = ">=8,<10", optional = true }
 hypothesis = { version = "^6.136", optional = true }
 mypy = { version = ">=1.12,<1.18", optional = true }