OpenSlide Python 1.4.2 released

[Benjamin Gilbert]

Hello,

OpenSlide Python 1.4.2 has been released.  This release drops support
for Python 3.8 and adds minor improvements.

If you installed OpenSlide Python with pip, you can upgrade with `pip
install --upgrade openslide-python`.  OpenSlide Python is also
available from a variety of package managers:

    https://openslide.org/download/#distribution-packages

For the full release notes, see:

    https://github.com/openslide/openslide-python/releases/tag/v1.4.2

Best,
--Benjamin Gilbert