Resolve another cython error: void* handle vs intptr_t handle

```
    Error compiling Cython file:
    ------------------------------------------------------------
    ...
            handle = load_library(driver_ver)

            # Load function
            global __nvJitLinkCreate
            try:
                __nvJitLinkCreate = <void*><intptr_t>win32api.GetProcAddress(handle, 'nvJitLinkCreate')
                                                                             ^
    ------------------------------------------------------------

    cuda\bindings\_internal\nvjitlink.pyx:78:73: Cannot convert 'void *' to Python object
```

Author: rwgk

cuda_bindings/cuda/bindings/_internal/nvjitlink_windows.pyx

@@ -53,7 +53,7 @@ cdef int _check_or_init_nvjitlink() except -1 nogil:
         return 0
 
     cdef int err, driver_ver
-    cdef void* handle
+    cdef intptr_t handle
     with gil:
         # Load driver to check version
         try:
@@ -70,7 +70,7 @@ cdef int _check_or_init_nvjitlink() except -1 nogil:
             raise RuntimeError('something went wrong')
 
         # Load library
-        handle = load_library(driver_ver)
+        handle = <intptr_t>load_library(driver_ver)
 
         # Load function
         global __nvJitLinkCreate

cuda_bindings/cuda/bindings/_internal/nvvm_windows.pyx

@@ -51,7 +51,7 @@ cdef int _check_or_init_nvvm() except -1 nogil:
         return 0
 
     cdef int err, driver_ver
-    cdef void* handle
+    cdef intptr_t handle
     with gil:
         # Load driver to check version
         try:
@@ -68,7 +68,7 @@ cdef int _check_or_init_nvvm() except -1 nogil:
             raise RuntimeError('something went wrong')
 
         # Load library
-        handle = load_library(driver_ver)
+        handle = <intptr_t>load_library(driver_ver)
 
         # Load function
         global __nvvmVersion