conditionally monkey patch nested_parse_with_titles

See sphinx-doc/sphinx#12492

Author: 2bndy5

sphinx_immaterial/apidoc/fix_sphinx_issue_11147.py

@@ -5,6 +5,7 @@
 import sphinx.directives
 import sphinx.util.nodes
 import sphinx.util.docutils
+import sphinx
 
 
 def _monkey_patch_nested_parse_with_titles():
@@ -28,7 +29,8 @@ def nested_parse_with_titles(state, content, node):
             return orig_nested_parse_with_titles(state, content, node)
 
     sphinx.util.nodes.nested_parse_with_titles = nested_parse_with_titles  # type: ignore[assignment]
-    sphinx.directives.nested_parse_with_titles = nested_parse_with_titles  # type: ignore[assignment]
+    if sphinx.version_info < (7, 4):
+        sphinx.directives.nested_parse_with_titles = nested_parse_with_titles  # type: ignore[assignment,attr-defined]
 
 
 _monkey_patch_nested_parse_with_titles()