fix: add GtidEvent check

Author: heehehe

pymysqlreplication/tests/test_basic.py

@@ -1747,7 +1747,7 @@ def setUp(self):
             only_events=(TableMapEvent,),
         )
         if not self.isMySQL8014AndMore():
-            self.skipTest("Mysql version is under 8.0.14 - pass TestOptionalMetaData")
+            self.skipTest("Mysql version is under 8.0.14 - pass TestColumnValueNoneSources")
         self.execute("SET GLOBAL binlog_row_metadata='FULL';")
 
     def test_get_none(self):
@@ -1789,6 +1789,7 @@ def test_get_none_invalid(self):
         self.assertIsInstance(self.stream.fetchone(), RotateEvent)
         self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
         self.assertIsInstance(self.stream.fetchone(), PreviousGtidsEvent)
+        self.assertIsInstance(self.stream.fetchone(), GtidEvent)
         self.assertIsInstance(self.stream.fetchone(), QueryEvent)
         self.assertIsInstance(self.stream.fetchone(), TableMapEvent)