Exchange-calendars

What’s Changed

**Lots of calendar updates and a couple of fixes.**

Particular thanks to all new contributors, not least herebebeasties for a host of PRs!

Calendar Updates
* XASX Dec 2022 early closes fix (374) herebebeasties
* XCSE: Prayers day has been abolished in Denmark (367) herebebeasties
* CSHG Add 2024-02-09 Chinese New Year (365) herebebeasties
* XMOS: updated holidays from 2020 (352) iMikeBug

Bug Fixes
* Fix `AttributeError` raising in ecal (361) maread99
* Fix end-date-only TZ logic in holiday.py (370) herebebeasties

Documentation
* Update README.md (364) da4089

Maintenance
* Update dependencies (375) maread99

Test Changes
* Fix missing assertion in XSGO calendar tests (369) herebebeasties

What’s Changed

Calendar Updates

* XSHG update 2024 holidays (351) vincentwyshan

Maintenance
* Update dependencies and fix pandas 2.2 deprecation warnings (358) maread99

Bug Fixes
* Fix 355 ecal error (358) maread99

Tests
* Additional tests for XTKS 2024 (349) beppe712

What’s Changed

Calendar Updates
* XBOM: Add 2024 holidays to XBOM (346) shenyingge
* HKEx stop trading on 20230717 because TYPHOON SIGNAL NO.8 (345) vincentwyshan
* XTKS: Add 2024 Vernal and Autumnal equinoxes (342) Quashqwart
* XSES: Draft 2024 trading calendar (343) philiptromans
* XKRX: Add extra holiday on 2023-10-02 (336) philiptromans

Maintenance
* Rename Asia/Calcutta to Asia/Kolkata (338) EdwardBetts
* Update dependencies (348 and 340) maread99

Documentation Updates
* Update tutorials (334) maread99

What’s Changed

> [!IMPORTANT]
> **`exchange-calendars` no longer uses the third-party `pytz` library.** From 4.5 timezones are represented by instances of `ZoneInfo` (see standard library [`zoneinfo`](https://docs.python.org/3/library/zoneinfo.html)).
>
> Thank you `pytz` for all you did for as long as you did it!

> [!NOTE]
> There is no `exchange-calendars` version 4.4. The version that immediately follows 4.3 is 4.5.

Calendar Updates
* XSHG: Add 2023-10-06 as a holiday (330) philiptromans

Maintenance
* Migrate from `pytz` to `zoneinfo` (329) maread99

What’s Changed

> [!NOTE]
> **Minimum supported Python version is now 3.9**

What’s Changed

Calendar Updates
* **New Calendar XASU!** Adds calendar for Saudi Arabia XASU exchange (310) oldfishdk
* XKRX: Holiday in lieu for Buddha's birthday (311) philiptromans
* XSHG: Add 2023-06-23 as part of Dragon Boat Festival. (312) philiptromans

Maintenance
* Update dependecies (313) maread99