Refractor/improve redability

[viveksahu26]

This PR add the following changes:

• dry-mode

  • Introduced dryRun() function to separate dry-run logic from the main transfer flow.
  • remove version from project name in dry-mode

• Refactored Adapter Role Handling

  • Removed explicit role parameter, deriving it dynamically from config.

• Applied SOLID Principles to NewGitHubIterator

  • NewGitHubIterator() only initializes the iterator.
  • HandleSBOMFetchingViaIterator() separates SBOM retrieval logic from NewGitHubIterator() to follow SOLID principle, as it's says one function for one reason.

• Fix token issue while fetching all repositories