Fix test

Author: tustvold

datafusion/core/tests/sql/timestamp.rs

@@ -576,8 +576,8 @@ async fn timestamp_add_interval_months() -> Result<()> {
     let res2 = actual[0][1].as_str();
 
     let format = "%Y-%m-%dT%H:%M:%S%.6fZ";
-    let t1_naive = chrono::NaiveDateTime::parse_from_str(res1, format).unwrap();
-    let t2_naive = chrono::NaiveDateTime::parse_from_str(res2, format).unwrap();
+    let t1_naive = NaiveDateTime::parse_from_str(res1, format).unwrap();
+    let t2_naive = NaiveDateTime::parse_from_str(res2, format).unwrap();
 
     let year = t1_naive.year() + (t1_naive.month0() as i32 + 17) / 12;
     let month = (t1_naive.month0() + 17) % 12 + 1;