option to choose architecture or detect architecture for downloaded dvc.deb file

[ricknitsche]

The architecture of the runner is hardcoded here:

setup-dvc/src/utils.js

Line 56 in 99b550f

`https://github.com/iterative/dvc/releases/download/${version}/dvc_${version}_amd64.deb`,

I was trying to use this action on an arm64 and got

Error: Command failed: /usr/bin/sudo apt update && /usr/bin/sudo apt install -y git ./dvc.deb && /usr/bin/sudo rm -f 'dvc.deb'

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.


WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

debconf: delaying package configuration, since apt-utils is not installed
E: Sub-process /usr/bin/dpkg returned an error code (1)

Could you add an option to select or detect the architecture?

Note: I think you can get rid of the warnings by using apt-get instead of apt.