Rename test range/days

src/traits.rs

@@ -322,7 +322,7 @@ mod tests {
     }
 
     #[test]
-    fn test_weeklike_range() {
+    fn test_weeklike_days() {
         let first_day = NaiveDate::from_ymd(2022, 4, 18);
         let week = FakeWeek { date: first_day };
         let days = week.days();