MarsSeed [1] filed a deletion request for ros-indigo-rosclean [2]: Unmaintained package, last updated in 2017. Broken because of Python 2 deps missing.
The 'Robot Operating System' supports Python 3.8+ so there is no reason to keep unmaintained Python 2 modules from them in AUR, especially if they are defunct. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ros-indigo-rosclean/