Bug#937648: python-click: Python2 removal in sid/bullseye

unblock 937648 by 936731 hi, I have been working to get rid of cruft packages in testing, python-click is the main thing holding the python-colorama cruft package in testing. Looking at the remaining "blockers", rows and nipype are not in testing, so I think we can disregard them (especially

Bug#937648: python-click: Python2 removal in sid/bullseye

severity 937648 serious thanks python-click depends on the python-colorama binary package, which is no longer built by the python-colorama source package.