Add Ghana holidays

[JerryAgbesi]

Proposed change

Adds support for official public holidays observed in Ghana

closes #1191

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 run make pre-commit, it didn't generate any changes
• I've run make test, all tests passed locally

[coveralls]

Pull Request Test Coverage Report for Build 7671158053

Warning: This coverage report may be inaccurate.

We've detected an issue with your CI configuration that might affect the accuracy of this pull request's coverage report.
To ensure accuracy in future PRs, please see these guidelines.
A quick fix for this PR: rebase it; your next report should be accurate.

• 0 of 40 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 7635551030:	0.0%
Covered Lines:	10426
Relevant Lines:	10426

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💛 - Coveralls

[arkid15r]

@JerryAgbesi thank you for implementing a new country support. The first one in 2024!

Please take a look at some improvement suggestions when you have a chance:

[KJhellico]

@JerryAgbesi, new countries are always welcomed! 👍 Please take a look at a few suggestions.

[JerryAgbesi]

Alright great, I'll add in the changes. Cheers 🥂

[arkid15r]

Hey @JerryAgbesi great work on the PR!

Please take a look at another round of my (mostly consistency enforcing) comments.
It seems it's good to go to beta after that 👍

[sonarqubecloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud

[arkid15r]

@KJhellico I hope we can finally accept it?

[KJhellico]

LGTM!