Possible memory leak on error path in _sys_getwindowsversion_from_kernel32

[sergey-miryanov]

Bug report

Bug description:

If GetFileVersionInfoW or VerQueryValueW fails inside _sys_getwindowsversion_from_kernel32 then allocated verblock not freed.

CPython versions tested on:

CPython main branch

Operating systems tested on:

Windows

Linked PRs

• gh-133597: Fix memory leak if error occurred in _sys_getwindowsversion_from_kernel32 #133598
• [3.14] gh-133597: Fix memory leak if error occurred in _sys_getwindowsversion_from_kernel32 (GH-133598) #133659
• [3.13] gh-133597: Fix memory leak if error occurred in _sys_getwindowsversion_from_kernel32 (GH-133598) #133660