fix: adapt to breaking llama.cpp changes

Author: giladgd

llama/cmake/win32.programFilesPaths.cmake

@@ -1,11 +1,15 @@
 function(setProgramFilesPaths CURRENT_ARCH)
+    set(PROGRAMFILES_X86_ENV_NAME "ProgramFiles(x86)")
+
     set(PROGRAMFILES "$ENV{ProgramFiles}")
-    set(PROGRAMFILES_X86 "$ENV{ProgramFiles\(x86\)}")
+    set(PROGRAMFILES_X86 "$ENV{${PROGRAMFILES_X86_ENV_NAME}}")
     file(TO_CMAKE_PATH "${PROGRAMFILES}" PROGRAMFILES)
     file(TO_CMAKE_PATH "${PROGRAMFILES_X86}" PROGRAMFILES_X86)
 
     if(CURRENT_ARCH STREQUAL "arm64")
-        set(PROGRAMFILES_ARM64 "$ENV{ProgramFiles\(Arm\)}")
+        set(PROGRAMFILES_ARM64_ENV_NAME "ProgramFiles(Arm)")
+
+        set(PROGRAMFILES_ARM64 "$ENV{${PROGRAMFILES_ARM64_ENV_NAME}}")
         file(TO_CMAKE_PATH "${PROGRAMFILES_ARM64}" PROGRAMFILES_ARM64)
 
         set(PROGRAMFILES_PATHS_LIST