v0.17.2 - Hot-fix: make `huggingface-cli upload` work with Spaces

Full Changelog: v0.17.1...v0.17.2

Fixing a bug when uploading files to a Space repo using the CLI. The command was trying to create a repo (even if it already exists) and was failing because space_sdk was not found in that case. More details in #1669.
Also updated the user-agent when using huggingface-cli upload. See #1664.

Checkout those release notes to learn more about the v0.17 release.