Add colour to checkupdates output

[wmemcpy]

Improved 'checkupdates' output. I don't know if it's normal that there's no colour difference between the two versions of the packages, but I found it sad when compared with the AUR manager, which has colours everywhere .

Example:

[Antiz96]

Hello,

This is actually an upstream checkupdates bug.
Indeed, the output is supposed to be colored by default but it does not work for some reason.

The issue has been raised on upstream side here.
I'll see if I can find a fix to propose on pacman-contrib side.

Thanks a lot for your effort, but I'd prefer that to be properly fixed on upstream side rather than implement a workaround on Arch Update side.

[wmemcpy]

No problem i was expecting such a response and that's quite normal. Thank you for your message ! :D

[Antiz96]

No problem! ;)

Actually, I created an issue (linked to a milestone for v1.10.0) to include a lightly colorized output for Arch Update and I mentioned that it would be great that the upstream checkupdates bug could be fixed before the release to get a consistent colorized output accros the whole script 😉

[Antiz96]

No problem i was expecting such a response and that's quite normal. Thank you for your message ! :D

I found the checkupdates upstream bug that prevents colors from being shown, I proposed a fix:
https://gitlab.archlinux.org/pacman/pacman-contrib/-/merge_requests/42