Display download progress while downloading SDK via dotnet-install.sh script on Linux CLI

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**Issue moved from dotnet/sdk#32604**
- Please respond to @egvijayanand.

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_From @egvijayanand on Wednesday, May 17, 2023 12:23:58 PM_

### Is your feature request related to a problem? Please describe.
Have tried installing .NET 8 Preview 4 on a Linux machine using the dotnet-install.sh script, but since I tried on the same day of release the download speed is not up to the mark as many users were trying to download the latest updates. So it took longer to complete the download and there's no indicator to show the progress, canceled it twice before knowing it was due to slow download (confirmed trying in a browser) and this feature request is not w.r.t any specific version.

### Describe the solution you'd like

Display a progress indicator about the background download activity something like `wget` shows.

And also a log message to the console is required whether download is initiated or not.

### Additional context
It can be considered for all CLI installations and not specific to Linux alone.