Update datafusion/sql/tests/sql_integration.rs

Co-authored-by: Neil Conway <neil.conway@gmail.com>

Author: aalexandrov

datafusion/sql/tests/sql_integration.rs

@@ -4849,8 +4849,8 @@ fn test_using_join_wildcard_schema() {
 
 #[test]
 fn test_using_join_wildcard_schema_semi_anti() {
-    let left_expected = vec!["s.x1".to_string(), "s.x2".to_string(), "s.x3".to_string()];
-    let right_expected = vec!["t.x1".to_string(), "t.x2".to_string(), "t.x3".to_string()];
+    let left_expected = &["s.x1", "s.x2", "s.x3"];
+    let right_expected = &["t.x1", "t.x2", "t.x3"];
 
     let sql = "WITH 
         s AS (SELECT 1 AS x1, 2 AS x2, 3 AS x3),