SafeConfigParser has been deprecated since Python 3.2 and was removed
in Python 3.12 entirely.
Per the release notes [1] it is recommended to use the ConfigParser
class now.

Additionally, the readfp method has been removed in favor of read_file.

[1] - https://docs.python.org/3.12/whatsnew/3.12.html#configparser

This included a number of changes related to the CPython API.

I additionally bumped the supported python versions in CI.

Constrained the Cython version to be less than 3.0, but greater than
0.29.34.
Updated the setup.py to account for the updated cythonize parameters.
Also made the appveyor version PEP440 compatible

Rebuilt the project with the latest version of Cython and unbound the
upper limit of Cython. This was a big jump, but now it a good time to
make it.

This commit adds all relevant files from the libssh2 repo, as of commit
631e773, with some additional attribution and licenses.

Remove unused CI files with broken LFS pointers

This changes the name of the package to ssh2-python312 and uses a github
action to build for both linux and mac before publishing to pypi.

In this form, the versioning is hard-coded into setup.py, but good
enough for the infrequency in which this should be pushed.

Update build information for temporary publish to PyPI

Added in macos-14 and windows-latest
Additionally, added a test build action to make sure nothing breaks in a
pull request.

Update build matrix

This change adds a new action that will run weekly, as well as can be
triggered manually, that will test the builds against an experimental
version of python. This is currently set to python 3.13-dev

changed away from an incorrect environment-based default.

hopefully correct this time...