Draft: Spike final upload path

Ref: #285597 (closed)

What does this MR do and why?

This is a POC MR which is an attempt to avoid copying objects from one bucket to another for CI artifacts.

As workhorse takes care of uploading a file directly to object storage we don't need CarrierWave to copy the file over one temporary directory to a final directory.

This will solve an issue where large artifacts uploads are timing out ( >60-second Puma timeout).

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How to set up and validate locally

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MR acceptance checklist

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