fix(cross-compile): Fix download of arm64 CMake binaries

This commit fixes a regression introduced in 6674721 (feat: cross-compile
to Windows ARM (#326)).

It ensures the arm64 CMake binary package is downloaded when building
the corresponding CMake Windows arm64 wheels.

Co-authored-by: Henry Schreiner <HenrySchreinerIII@gmail.com>

CMakeLists.txt

@@ -80,7 +80,7 @@ if(CMakePythonDistributions_SUPERBUILD)
     set(binary_archive "win32_binary")
     if(CMAKE_SIZEOF_VOID_P EQUAL 8)
       if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "ARM64" OR "$ENV{SETUPTOOLS_EXT_SUFFIX}" MATCHES arm64)
-        set(binary_achive "winarm64_binary")
+        set(binary_archive "winarm64_binary")
       else()
         set(binary_archive "win64_binary")
       endif()