chore: revert 'fix: fix the integration test error'

Signed-off-by: StandingMan <jmtangcs@gmail.com>

Author: Standing-Man

tests-integration/src/tests/instance_test.rs

@@ -1850,10 +1850,7 @@ async fn test_cast_type_issue_1594(instance: Arc<dyn MockInstance>) {
 
     let output = execute_sql(
         &instance,
-        &format!(
-            "copy tsbs_cpu from '{}' WITH(FORMAT='csv', header='false');",
-            &filepath
-        ),
+        &format!("copy tsbs_cpu from '{}' WITH(FORMAT='csv');", &filepath),
     )
     .await;