Setting FORCE_COLOR=true does not seem to give colorized output in GitHub actions.

Reproducer pipeline job at https://github.com/scop/pytekukko/actions/runs/12620953794/job/35167229162 (the "Install Python dev dependencies" step)

• Shows that FORCE_COLOR is set to true in the env, and there's no NO_COLOR or CLICOLOR_FORCE env vars present
• Shows that there's no --color arg passed to uv

...but the uv output has no color. I tried explicit export of FORCE_COLOR too, to no avail.

Another job at https://github.com/scop/pytekukko/actions/runs/12620965743/job/35167258389 that passes --color always does result in color output (again, see the "Install Python dev dependencies" step).

This workflow uses the current astral-sh/setup-uv action, so uv is current, too.