py3-*: bump pkgrel and update upstream versions

Update all non-sr.ht Python packages

py3-colour: add missing dependency

py3-colour: bump pkgrel

py3-colour: bump pkgrel

sr.ht/py3-colour: add py3-wheel makedepend

sr.ht/py3-colour: bump pkgrel

Update all dependency packages

Set all pkgrels to zero

Move into subdir for abuild reasons