fix flaky test

Author: blink1073

test/asynchronous/test_encryption.py

@@ -3494,6 +3494,7 @@ async def asyncSetUp(self) -> None:
         hello = await self.mongocryptd_client.db.command("hello")
         self.assertNotIn("logicalSessionTimeoutMinutes", hello)
 
+    @flaky  # PYTHON-4982
     async def test_implicit_session_ignored_when_unsupported(self):
         self.listener.reset()
         with self.assertRaises(OperationFailure):

test/test_encryption.py

@@ -3476,6 +3476,7 @@ def setUp(self) -> None:
         hello = self.mongocryptd_client.db.command("hello")
         self.assertNotIn("logicalSessionTimeoutMinutes", hello)
 
+    @flaky  # PYTHON-4982
     def test_implicit_session_ignored_when_unsupported(self):
         self.listener.reset()
         with self.assertRaises(OperationFailure):