build(deps): update dependency pytest to v9 (#131)

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

Author: renovate[bot]

pyproject.toml

@@ -44,7 +44,7 @@ dev = [
     "prek>=0.2.1",
     "ruff~=0.14.0",
     "pydantic~=2.10",
-    "pytest~=8.4.1",
+    "pytest~=9.0.0",
     "pytest-cov~=7.0.0",
     "beautifulsoup4>=4.13.3",
     "inline-snapshot~=0.31.0",