Update pytest warning filter.

Author: domdfcoding

tox.ini

@@ -274,6 +274,7 @@ filterwarnings =
     always:ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead:DeprecationWarning:mypy.fastparse
     always:ast.Bytes is deprecated and will be removed in Python 3.14; use ast.Constant instead:DeprecationWarning:mypy.fastparse
     always:ast.Num is deprecated and will be removed in Python 3.14; use ast.Constant instead:DeprecationWarning:mypy.fastparse
+    always:mypy_extensions.TypedDict is deprecated, and will be removed in a future version. Use typing.TypedDict or typing_extensions.TypedDict instead.:DeprecationWarning
 
 [doc8]
 ignore-path = doc-source/build