[cairo] ANN: pycairo release 1.13.0 now available

[Christoph Reiter]

This release adds various new enum types [0] which supersede the
module level constants [1]. e.g. cairo.ANTIALIAS_DEFAULT is now also
available under cairo.Antialias.DEFAULT.

cairo.ImageSurface now implements the Python 2 character buffer
interface to work with pygame.image.frombuffer()

All the included examples have been cleaned up to work with Python 3,
GTK+ 3 and pygame and the remaining manual tests have been converted
to pytest tests.

For more details see the changelog:

    https://pycairo.readthedocs.io/en/latest/changelog.html

For the release tarball see:

    https://github.com/pygobject/pycairo/releases/tag/v1.13.0

[0] https://pycairo.readthedocs.io/en/latest/reference/enums.html
[1] https://pycairo.readthedocs.io/en/latest/reference/legacy_constants.html