[3.13] Fix typo in Lib/test/test_ast/test_ast.py (pythonGH-136767)

`ASTOptimiziationTests` -> `ASTOptimizationTests`
(cherry picked from commit 60146f4)

Co-authored-by: Hunter Hogan <hunterhogan@users.noreply.github.com>

Author: hunterhogan

Lib/test/test_ast/test_ast.py

@@ -3236,7 +3236,7 @@ def test_cli_file_input(self):
 def compare(left, right):
     return ast.dump(left) == ast.dump(right)
 
-class ASTOptimiziationTests(unittest.TestCase):
+class ASTOptimizationTests(unittest.TestCase):
     binop = {
         "+": ast.Add(),
         "-": ast.Sub(),