Log Message:
py-cairo: update to 1.22.0.

1.22.0 - 2022-11-19
-------------------

* Officially support Python 3.11 :pr:`285`
* PDFSurface.version_to_string(): Fix crash with negative versions :pr:`279`
* typing: ImageSurface.get_stride() returns an int :pr:`282`
* typing: Fix incorrect interface for Matrix constructor :pr:`271`
* typing: Use Generic for Context :pr:`274`
* docs: some cairo.Context fixes :pr:`276`
* docs: try to make create_from_png/write_to_png more clear :pr:`261`
* docs: add an example for how to convert a surface to pillow :pr:`281`
* docs: cairo.Format.RGB24: document that unused bytes may be overwritten :pr:`289`
* tests: don't depend on specific ref counts :pr:`291`
* tests: compatibility fixes for cairo 1.17.6 :pr:`264`