chore(deps): update dependency sphinx-toolbox to v4

Author: renovate[bot]

pyproject.toml

@@ -183,7 +183,7 @@ dev = [
     "sphinx-mdinclude>=0.6.2,<1",
     "sphinx-rtd-theme>=3.0.2,<4",
     "sphinx_selective_exclude>=1.0.3,<2",
-    "sphinx-toolbox>=3.9.0,<4",
+    "sphinx-toolbox>=4,<5",
     "sphinxext.opengraph>=0.9.1,<1",
     "swagger-plugin-for-sphinx>=5.2.0,<6",
     "tomli>=2.3.0,<3",