Temporary disable AES256ColumnEncryptionPolicy

There was some seriouse issues in policy implementation in `3.27.0`.
We want to inspect the feature before making it available.

cassandra/cluster.py

@@ -2686,6 +2686,8 @@ def __init__(self, cluster, hosts, keyspace=None):
                     {"column_encryption_policy": self.cluster.column_encryption_policy})
             except AttributeError:
                 log.info("Unable to set column encryption policy for session")
+            raise Exception(
+                "column_encryption_policy is temporary disabled, until https://github.com/scylladb/python-driver/issues/365 is sorted out")
 
         if self.cluster.monitor_reporting_enabled:
             cc_host = self.cluster.get_control_connection_host()

tests/integration/standard/column_encryption/test_policies.py

@@ -25,6 +25,7 @@
 def setup_module():
     use_singledc()
 
+@unittest.skip("Skip until https://github.com/scylladb/python-driver/issues/365 is sorted out")
 class ColumnEncryptionPolicyTest(unittest.TestCase):
 
     def _recreate_keyspace(self, session):

tests/unit/column_encryption/test_policies.py

@@ -19,6 +19,7 @@
 from cassandra.column_encryption.policies import AES256ColumnEncryptionPolicy, \
     AES256_BLOCK_SIZE_BYTES, AES256_KEY_SIZE_BYTES
 
+@unittest.skip("Skip until https://github.com/scylladb/python-driver/issues/365 is sorted out")
 class AES256ColumnEncryptionPolicyTest(unittest.TestCase):
 
     def _random_block(self):