[3.12] Fix version number in use_load_tests deprecation reference (GH-119151) (GH-119387)

Deprecation took place in d78742a (3.5)
(cherry picked from commit aee8f03)

Co-authored-by: Jacob Walls <jacobtylerwalls@gmail.com>

Author: miss-islington

Doc/whatsnew/3.12.rst

@@ -1750,7 +1750,7 @@ unittest
 
   * Undocumented :meth:`TestLoader.loadTestsFromModule
     <unittest.TestLoader.loadTestsFromModule>` parameter *use_load_tests*
-    (deprecated and ignored since Python 3.2).
+    (deprecated and ignored since Python 3.5).
 
   * An alias of the :class:`~unittest.TextTestResult` class:
     ``_TextTestResult`` (deprecated in Python 3.2).