Importing libvalkey on free threaded Python 3.14t reenables the GIL

[cclauss]

% uvx --with=libvalkey python3.14t -c "import libvalkey ; reader = libvalkey.Reader()"

Built libvalkey==4.0.1
    Installed 1 package in 1ms
<frozen importlib._bootstrap>:491: RuntimeWarning: The global interpreter lock (GIL) has been enabled to
    load module 'libvalkey.libvalkey', which has not declared that it can run safely without the GIL.
    To override this behavior and keep the GIL disabled (at your own risk), run with PYTHON_GIL=0 or -Xgil=0.

https://py-free-threading.github.io/porting

• Test Python thread safety with pytest-run-parallel #42

[mkmkme]

Support for free threaded python 3.14 has been disabled for now. We will get back to that when we have time