chore: chrono_update (#7132)

chrono version update

# Description

upgrade chrono to 0.4.23

# Major Changes

If you're considering making any major change to nushell, before
starting work on it, seek feedback from regular contributors and get
approval for the idea from the core team either on
[Discord](https://discordapp.com/invite/NtAbbGn) or [GitHub
issue](https://github.com/nushell/nushell/issues/new/choose).
Making sure we're all on board with the change saves everybody's time.
Thanks!

# Tests + Formatting

Make sure you've done the following, if applicable:

- Add tests that cover your changes (either in the command examples, the
crate/tests folder, or in the /tests folder)
- Try to think about corner cases and various ways how your changes
could break. Cover those in the tests

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace --features=extra -- -D warnings -D
clippy::unwrap_used -A clippy::needless_collect` to check that you're
using the standard code style
- `cargo test --workspace --features=extra` to check that all tests pass

# After Submitting

* Help us keep the docs up to date: If your PR affects the user
experience of Nushell (adding/removing a command, changing an
input/output type, etc.), make sure the changes are reflected in the
documentation (https://github.com/nushell/nushell.github.io) after the
PR is merged.

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>

crates/nu-command/src/generators/cal.rs

@@ -184,12 +184,12 @@ impl MonthHelper {
         let next_month_naive_date =
             NaiveDate::from_ymd_opt(selected_year, selected_month, 1).ok_or(())?;
 
-        Ok(next_month_naive_date.pred().day())
+        Ok(next_month_naive_date.pred_opt().unwrap_or_default().day())
     }
 }
 
 fn get_current_date() -> (i32, u32, u32) {
-    let local_now_date = Local::now().date();
+    let local_now_date = Local::now().date_naive();
 
     let current_year: i32 = local_now_date.year();
     let current_month: u32 = local_now_date.month();

crates/nu-command/src/generators/seq_date.rs

@@ -195,10 +195,9 @@ pub fn run_seq_dates(
     day_count: Option<Value>,
     reverse: bool,
 ) -> Result<Value, ShellError> {
-    let today = Local::today().naive_local();
-    let mut step_size: i64 = increment
-        .as_i64()
-        .expect("unable to change increment to i64");
+    let today = Local::now().date_naive();
+    // if cannot convert , it will return error
+    let mut step_size: i64 = increment.as_i64()?;
 
     if step_size == 0 {
         return Err(ShellError::GenericError(