pythongh-101390: Fix docs for imporlib.util.LazyLoader.factory to properly call it a class method (pythonGH-101391)

(cherry picked from commit 17143e2)

Co-authored-by: busywhitespace <[email protected]>

Author: busywhitespace

Doc/library/importlib.rst

@@ -1462,7 +1462,7 @@ an :term:`importer`.
 
    .. classmethod:: factory(loader)
 
-      A static method which returns a callable that creates a lazy loader. This
+      A class method which returns a callable that creates a lazy loader. This
       is meant to be used in situations where the loader is passed by class
       instead of by instance.
       ::