Update dependency sphinx to v9

renovate[bot] · web-flow · commit d3c841558f02 · 2025-12-01T06:14:11.000Z
diff --git a/pyproject.toml b/pyproject.toml
@@ -56,7 +56,7 @@ dev = [
     "pytest-mock>=3.8.2,<4",
     "python-dotenv>=1.0.0,<2",
     "requests-toolbelt>=1.0.0,<2",
-    "sphinx~=7.0",
+    "sphinx~=9.0",
     "sphinx-rtd-theme>=3.0.0,<4",
     "pytest-vcr>=1.0.2,<2",
     "nbsphinx>=0.9.5,<0.10",
