gh-111490: Make the exception type check in test_pyexpat more specific (GH-111491)

Author: sobolevn

Lib/test/test_pyexpat.py

@@ -544,7 +544,7 @@ def handler(text):
         parser = expat.ParserCreate()
         parser.CharacterDataHandler = handler
 
-        self.assertRaises(Exception, parser.Parse, xml.encode('iso8859'))
+        self.assertRaises(SpecificException, parser.Parse, xml.encode('iso8859'))
 
 class ChardataBufferTest(unittest.TestCase):
     """