cfg flag support files

Author: abhi-airspace-intelligence

etl-destinations/tests/support/bigquery.rs

@@ -1,4 +1,5 @@
 #![allow(dead_code)]
+#![cfg(feature = "bigquery")]
 
 use base64::Engine;
 use base64::prelude::BASE64_STANDARD;

etl-destinations/tests/support/deltalake.rs

@@ -1,4 +1,5 @@
 #![allow(dead_code)]
+#![cfg(feature = "deltalake")]
 
 use deltalake::{DeltaResult, DeltaTable};
 use etl::store::schema::SchemaStore;

etl-destinations/tests/support/lakekeeper.rs

@@ -1,4 +1,5 @@
 #![allow(dead_code)]
+#![cfg(feature = "iceberg")]
 
 use uuid::Uuid;