chore(deps): update dependency pytest to v9 (#651)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

poetry.lock

@@ -49,7 +49,7 @@ deprecated = "^1.2.15"
 codespell = "^2.3.0"
 mypy = "^1.11.2"
 pylint = "^4.0.0"
-pytest = "^8.3.2"
+pytest = "^9.0.0"
 pytest-cov = "^7.0.0"
 ruff = "^0.14.0"
 types-deprecated = "^1.2.15.20241117"