feat: LLMO endpoint for fetching files with GET requests | LLMO-1094

[calvarezg]

Description

Create a new endpoint in LLMO controller for fetching files through GET. This endpoint allows requesting multiple files if needed.

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Related Issues

https://jira.corp.adobe.com/browse/LLMO-1094

[github-actions]

This PR will trigger a minor release when merged.

[solaris007]

🎉 This PR is included in version 1.242.0 🎉

The release is available on GitHub release

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