Description

Update: I have submitted the PR here: hub4j#1315

This PR includes the following changes:

• Introduce a new enum GHFork.
• Refactor the existing code to use the new GHFork enum.
• Add a new unit test to test GitHub code search including results of forks.

What's pending?

• Run WireMock snapshots for the newly added unit test

Before submitting a PR:

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• Push your changes to a branch other than main. Create your PR from that branch.
• Add JavaDocs and other comments
• Write tests that run and pass in CI. See CONTRIBUTING.md for details on how to capture snapshot data.
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