Show time taken to download instead of eta 0:00:00 in Rich Progress

[qraqras]

Close #13483

Thanks!

[notatallshaw]

Thanks for your PR to pip. Please be aware all maintainers are volunteers so it may take a moment for someone to review.

That said, let me know if you need any help fixing the the linting and pre-commit errors, you should be able to locally run them following this guide: https://pip.pypa.io/en/stable/development/getting-started/#running-linters

[ichard26]

There is an extra space, but there isn't much we can do about that unfortunately. It'd be nice if Rich wouldn't add the space if the column was empty, but looking at the codebase, such a change seems nontrivial.

[ichard26]

Thank you @qraqras for your contribution!