Remove useless use of vec!

Author: rodoufu

src/agent/legacy_schedule.rs

@@ -384,7 +384,7 @@ mod tests {
             "Europe/Amsterdam,23:00-24:00,00:00-01:00,O,C,C,C,C".parse()?;
 
         let format = "%Y-%m-%d %H:%M";
-        let ok_datetimes = vec![
+        let ok_datetimes = [
             NaiveDate::from_ymd_opt(2023, 11, 20)
                 .unwrap()
                 .and_time(MAX_TIME_INSTANT.clone())
@@ -395,7 +395,7 @@ mod tests {
                 .unwrap(),
         ];
 
-        let bad_datetimes = vec![
+        let bad_datetimes = [
             // Start of Monday Nov 20th, must not be confused for MAX_TIME_INSTANT on that day
             NaiveDateTime::parse_from_str("2023-11-20 00:00", format)?
                 .and_local_timezone(Tz::Europe__Amsterdam)