Fix the pin

Author: krassowski

pyproject.toml

@@ -46,7 +46,7 @@ Tracker = "https://github.com/ipython/ipykernel/issues"
 docs = [
   # Sphinx pinned until `sphinx-autodoc-typehints` issue is resolved:
   # https://github.com/tox-dev/sphinx-autodoc-typehints/issues/523
-  "sphinx<=8.2.0",
+  "sphinx<8.2.0",
   "myst_parser",
   "pydata_sphinx_theme",
   "sphinxcontrib_github_alt",