Add Thailand's Bridge Public Holiday on Dec 29, 2023

[PPsyrius]

Proposed change

This PR adds the newly announced (as of Oct 24, 2023) Bridge Public Holiday for Dec 29, 2023, while removing the original one on Jan 2 (New Year's Eve (in-lieu)) for 2024 - thus creating a de facto 4-days long holidays period for Dec 29, 2023 - Jan 1, 2024.

Note

There's also a similar consideration for adding a Bridge Public Holiday for Dec 30, 2024 too, but that has yet to be confirmed.

Type of change

• New country/market holidays support (thank you!)
• Supported country/market holidays update (calendar discrepancy fix, localization)
• Existing code/documentation/test/process quality improvement (best practice, cleanup, refactoring, optimization)
• Dependency update (version deprecation/upgrade)
• Bugfix (non-breaking change which fixes an issue)
• Breaking change (a code change causing existing functionality to break)
• New feature (new python-holidays functionality in general)

Checklist

• I've followed the contributing guidelines
• I've added references to all holidays information sources used in this PR
• The code style looks good: make pre-commit command generates no changes
• All tests pass locally: make test, make tox (we strongly encourage adding tests to your code)

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[coveralls]

Pull Request Test Coverage Report for Build 6624613432

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 99.978%

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Totals
Change from base Build 6620987603:	0.0%
Covered Lines:	10068
Relevant Lines:	10068

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💛 - Coveralls

[KJhellico]

LGTM.

[arkid15r]

🇹🇭 LGTM