feat: branch name field added in API response for a cd Artifact material

[prakash100198]

Description

For each particular artifact card shown in Select Image and Rollback section, now we are going to show form which git branch and repo the artifact was prepared.
Fixes #

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Tested by deploying on demo, test cases:-

1. Make a workflow with cd configured, now click on Select Image/ Rollback the api response, previously the branch name was not coming from the backend, but after the fix the branch name is also coming, for a particular cd-pipeline.
2. tested by looking into api response of diff cd-workflows configured from diff branches, the branch data was coming as correct.

Checklist:

• The title of the PR states what changed and the related issues number (used for the release note).
• Does this PR requires documentation updates?
• I've updated documentation as required by this PR.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have tested it for all user roles.
• I have added all the required unit/api test cases.

Does this PR introduce a user-facing change?

[sonarqubecloud]

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