Add tzdata as a dependency on Windows

[BLKSerene]

What does this changes

Add tzdata as a dependency on Windows, and also some code cleanups in pythainlp.util.data.

What was wrong

pythainlp.util.data use the standard library zoneinfo, which would uses the system’s time zone data if available, otherwise it would use tzdata.

Time zone data is included on macOS and Linux, but not on Windows, so tzdata is required to be installed on Windows, otherwise on import pythainlp it would show this error:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "D:\Python\lib\site-packages\pythainlp\__init__.py", line 57, in <module>
    from pythainlp.soundex import soundex
  File "D:\Python\lib\site-packages\pythainlp\soundex\__init__.py", line 29, in <module>
    from pythainlp.soundex.lk82 import lk82
  File "D:\Python\lib\site-packages\pythainlp\soundex\lk82.py", line 23, in <module>
    from pythainlp.util import remove_tonemark
  File "D:\Python\lib\site-packages\pythainlp\util\__init__.py", line 71, in <module>
    from pythainlp.util.date import (
  File "D:\Python\lib\site-packages\pythainlp\util\date.py", line 213, in <module>
    tzinfo=ZoneInfo("Asia/Bangkok")
  File "D:\Python\lib\zoneinfo\_common.py", line 24, in load_tzdata
    raise ZoneInfoNotFoundError(f"No time zone found with key {key}")
zoneinfo._common.ZoneInfoNotFoundError: 'No time zone found with key Asia/Bangkok'

How this fixes it

Add tzdata as a dependency on Windows.

Your checklist for this pull request

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• Passed code styles and structures
• Passed code linting checks and unit test

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

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[wannaphong]

Thank you!

[BLKSerene]

@wannaphong Could you please publish a new (beta) release to fix dependency issues on CI?

[wannaphong]

@wannaphong Could you please publish a new (beta) release to fix dependency issues on CI?

Done https://pypi.org/project/pythainlp/4.1.0b5/

[bact]

Fantastic. Much appreciated for cross-platform runability.