Add more version upgrade tips
sr.ht/meta.sr.ht: add -billing subpackage
Update README.md with upgrade lessons
builds.sr.ht: bump pkgrel
dispatch.sr.ht: upgrade to 0.13.2
sr.ht/git-send-email.io: update to 0.1.9
sr.ht/paste.sr.ht: upgrade to 0.9.0
sr.ht/builds.sr.ht: update to 0.52.4
sr.ht/py3-scmsrht: upgrade to 0.18.1
sr.ht/py3-srht: upgrade to 0.57.2
sr.ht/py3-pygithub: add setuptools to makedeps
sr.ht/py3-colour: add py3-wheel makedepend
sr.ht/py3-misaka: add missing dependency
sr.ht/py3-wheel: new aport
sr.ht/py3-cairosvg: re-introduce flake8/isort plugins
build.yml: use sr.ht 3.11 repository
sr.ht/py3-cairosvg: drop isort/flake8 plugins
build.yml: prefer abuild -r over abuild -R
sr.ht/py3-kombu: bump pkgrel