[3.9] Fix typo in typing.py (GH-22121) (GH-22156)



This is a trivial PR to fix a typo in a docstring in typing.py. From reverences -> references
(cherry picked from commit 84ef33c5117acd9867781135a9aeb62052432e8a)


Co-authored-by: Graham Bleaney <gbleaney@gmail.com>
diff --git a/Lib/typing.py b/Lib/typing.py
index 5da032b..39c956d 100644
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -245,7 +245,7 @@
 
 
 def _eval_type(t, globalns, localns, recursive_guard=frozenset()):
-    """Evaluate all forward reverences in the given type t.
+    """Evaluate all forward references in the given type t.
     For use of globalns and localns see the docstring for get_type_hints().
     recursive_guard is used to prevent prevent infinite recursion
     with recursive ForwardRef.