Update dependency pytest to v9 [SECURITY]

Author: renovate[bot]

pyproject.toml

@@ -29,7 +29,7 @@ defusedxml = "^0.7.1"
 docutils = "0.16"
 
 [tool.poetry.group.dev.dependencies]
-pytest = "^8.3.3"
+pytest = "^9.0.0"
 pytest-cov = "^5.0.0"
 pytest-asyncio = "^0.24.0"
 Sphinx = "^4.4.0"