Skip test_create_iceberg_table due to missing external volume permissions

The external volume doesn't have LIST privileges on the dynamically
generated CI database paths.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: eakmanrq <6326532+eakmanrq@users.noreply.github.com>

Author: eakmanrq

tests/core/engine_adapter/integration/test_integration_snowflake.py

@@ -186,6 +186,7 @@ def _get_data_object(table: exp.Table) -> DataObject:
     assert not metadata.is_clustered
 
 
+@pytest.mark.skip(reason="External volume LIST privileges not configured for CI test databases")
 def test_create_iceberg_table(ctx: TestContext) -> None:
     # Note: this test relies on a default Catalog and External Volume being configured in Snowflake
     # ref: https://docs.snowflake.com/en/user-guide/tables-iceberg-configure-catalog-integration#set-a-default-catalog-at-the-account-database-or-schema-level