feat: Add support for Bitbucket provider in gitprovider

[chamodshehanka]

Closes: #2569

Added support for Bitbucket provider in gitprovider.
For now I opened a WIP PR

TODO

• Complete the convertBitbucketPR function
• Handle the interface{} type - The Bitbucket library returns interface{} for some fields. You need to properly type assert these fields to extract the necessary information
• Test the implementation

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[chamodshehanka]

@krancour could you please help/guide me to up and running this in local, so can test this implementation?

Thanks

[hiddeco]

Hey @chamodshehanka,

Information about how Kargo can be run locally can be found here: https://docs.kargo.io/contributor-guide/hacking-on-kargo#iterating-quickly

However, as we would like to have this included in 1.4.0. You can leave this with me for now, and I will do the due diligence on rebasing and testing this pull request if this is alright with you.

[chamodshehanka]

hiddeco

Thanks for sharing the guide. yah! That's totally fine with me.

[codecov]

Codecov Report

Attention: Patch coverage is 1.27389% with 155 lines in your changes missing coverage. Please review.

Project coverage is 21.77%. Comparing base (1ecfb0c) to head (d8f6310).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/gitprovider/bitbucket/bitbucket.go	1.27%	155 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3209      +/-   ##
==========================================
- Coverage   21.92%   21.77%   -0.16%     
==========================================
  Files         312      313       +1     
  Lines       65226    65728     +502     
==========================================
+ Hits        14302    14313      +11     
- Misses      50155    50645     +490     
- Partials      769      770       +1     

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[hiddeco]

Due to the remaining // TODOs in the last commit, I do not think we will be able to include this in the upcoming 1.4.0 release.