ignore without_timezone test for now (#14297)

# Description

Since the human-date-parser was switched to use the users local
timezone, this test may not be needed anymore. I've just ignored it for
now and put a comment about why it's being ignored.

There are more discussions on this topic here
https://github.com/nushell/nushell/pull/14266

# User-Facing Changes
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crates/nu-command/src/conversions/into/datetime.rs

@@ -507,7 +507,14 @@ mod tests {
     }
 
     #[test]
+    #[ignore]
     fn takes_a_date_format_without_timezone() {
+        // Ignoring this test for now because we changed the human-date-parser to use
+        // the users timezone instead of UTC. We may continue to tweak this behavior.
+        // Another hacky solution is to set the timezone to UTC in the test, which works
+        // on MacOS and Linux but hasn't been tested on Windows. Plus it kind of defeats
+        // the purpose of a "without_timezone" test.
+        // std::env::set_var("TZ", "UTC");
         let date_str = Value::test_string("16.11.1984 8:00 am");
         let fmt_options = Some(DatetimeFormat("%d.%m.%Y %H:%M %P".to_string()));
         let args = Arguments {