Fix Socket#tty? to false on Windows

[Blacksmoke16]

This ended up being not as straight forward as the FileDescriptor context as fd in this case is actually a LibC::SOCKET not a raw Int like in the other context. After doing some research it seems that sockets can be treated like other windows handles and as such can pass it to _open_osfhandle in order to get a C file descriptor to pass to _isatty.

After this PR, the spec I added correctly returns false, tho I'm not sure if there is a case where you can get a socket to be a tty in order to test the case of it being true.

Fixes #13165

refs:

• https://stackoverflow.com/a/25072414
• https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/open-osfhandle?view=msvc-170

EDIT: After reading some more I'm not so sure:

The _open_osfhandle call transfers ownership of the Win32 file handle to the file descriptor. To close a file opened by using _open_osfhandle, call _close. The underlying OS file handle is also closed by a call to _close.

Transferring the ownership of the handle to the FD doesn't seem like what we want, and can't really close it w/o also closing the underlying handle?

EDIT2: Just going to try returning false given it doesn't seem like you can have a windows socket be a tty. Can revisit in future if this is disproven, but at least gets things compiling.