Merge pull request #33 from CCPBioSim/renovate/sphinx-9.x

fix(deps): update dependency sphinx to v9

Author: harryswift01

pyproject.toml

@@ -60,7 +60,7 @@ pre-commit = [
 ]
 
 docs = [
-    "sphinx>=7,<8",
+    "sphinx>=9,<10",
     "nbsphinx>=0.9,<1.0",
     "sphinx_rtd_theme>=3,<3.2",
     "sphinx_copybutton>=0.5,<1.0",