Backport PR #1865: (fix): bound sphinx due to autodoc incompat (#1867)

Co-authored-by: Ilan Gold <ilanbassgold@gmail.com>

Author: meeseeksmachine

pyproject.toml

@@ -64,7 +64,9 @@ dev = [
     "anndata[dev-doc,dev-test]",
 ]
 doc = [
-    "sphinx>=7.4.6",
+    # https://github.com/tox-dev/sphinx-autodoc-typehints/issues/523
+    # means autodoc-typehints is incompatible with sphinx 8.2.0
+    "sphinx>=7.4.6,<8.2.0",
     "sphinx-book-theme>=1.1.0",
     "sphinx-autodoc-typehints>=2.2.0",
     "sphinx-issues",