community/cairomm1.16: upgrade to 1.18.0; rename to cairomm; take over maintainership

followup on !75062 (merged) - !75062 (comment 455939)

https://gitlab.freedesktop.org/cairo/cairomm/-/compare/1.16.2...1.18.0
https://gitlab.freedesktop.org/cairo/cairomm/-/blob/e0bad547705348657d09db4c9375833d8890cf54/NEWS

changed the description

added 1766 commits

• c0fe9774...7380611a - 1760 commits from branch alpine:master
• 240a692d - community/cairomm1.16: upgrade to 1.18.0
• 63dbec1f - community/gtkmm4: rebuild against cairomm-1.18.0
• c03112fd - community/pangomm: rebuild against cairomm-1.18.0
• 0df23f9b - community/gnote: rebuild against cairomm-1.18.0
• 1dd0313a - community/headlines: rebuild against cairomm-1.18.0
• ebdbf651 - community/transmission: rebuild against cairomm-1.18.0

Compare with previous version

merged