gh release download could use a progress meter

[smowton]

Used gh release download to fetch a release binary for the first time. A few comments:

• The eight-dot single-character progress spinner is really small; it took me 10 seconds or so to notice it was doing anything.
• The spinner is printed aqua-blue even when my terminal has a white background, which is nearly invisible. Perhaps just standard text colour would be better?
• Since we're downloading a file and likely know its size pretty early, a CURL-style progress meter would be better than making me open nettop to figure out if the command has stalled or not.

[mislav]

Thanks for the suggestion! Agreed that displaying a proper progress bar would be beneficial for the release download command.

[oleg-alexandrov]

Strongly endorse adding a progress bar to any download tool, such as gh release download and gh run download. Sometimes it can take a very long time and it is not clear what is going on.

[swilliams-intellum]

Same goes for uploading.

[huyz]

Same goes for long API commands?