Python 3.14 support

[shusvr]

Version and Platform (required):

• Binary Ninja Version: 5.3.9387-dev Personal (0d8b5e76)
• Edition: Non-Commercial
• OS: Arch linux
• CPU Architecture: x64

Bug Description:
Binary ninja fails to load the native plugin pythonplugin if system has only python 3.14 installed. And I get these error & warning:

[PythonPlugin] Failed to find suitable libpython! Specified python library does not exist: 
[Core] Native plugin pythonplugin failed to load

I have

$ ls /usr/lib/ | rg 'libpython'
lrwxrwxrwx     - root root  13 Feb 18:31  libpython3.14.so -> libpython3.14.so.1.0
.rwxr-xr-x  5.9M root root  13 Feb 18:31  libpython3.14.so.1.0
.rwxr-xr-x   14k root root  13 Feb 18:31  libpython3.so

This causes all python plugins to fail to load.

If I add a symlink libpython3.13.so.1.0 then the previous warning & error are gone but I doubt this is a robust long term solution.

Expected Behavior:
I expected binary ninja to load properly without errors and warnings and to have plugins load correctly.

[negasora]

Set the python.interpreter setting to /usr/lib/libpython3.14.so.1.0. Right now we only automatically search for up to 3.13.