gh run download downloads artifacts using a single-stream, backend supports multi-stream

### Describe the feature or problem you’d like to solve

Current HTTP Client used by the `gh run download` command uses a single-stream download approach.
For larger files, downloading using smaller chunks in multiple parallel streams has the potential to significantly increase download speeds.

### Proposed solution

If implemented, a multi-stream download approach is likely to increase download speeds. The Blob Storage providers used back GitHub Actions Artifacts supports requests by range and the multi-stream approach. In fact, this approach is implemented by Blob Storage Providers tooling, for example, Azure azcopy.

### Additional context

N/A