[UR][CUDA] Fix compatibility with CUDA 11.x

The code introduced in 74f42f8 uses the
signature of cuGraphInstantiate from CUDA 12.x. In CUDA 11.x, this
function has different parameters.

Author: al42and

source/adapters/cuda/command_buffer.cpp

@@ -140,8 +140,13 @@ urCommandBufferReleaseExp(ur_exp_command_buffer_handle_t hCommandBuffer) {
 UR_APIEXPORT ur_result_t UR_APICALL
 urCommandBufferFinalizeExp(ur_exp_command_buffer_handle_t hCommandBuffer) {
   try {
+#if CUDART_VERSION >= 12000
     UR_CHECK_ERROR(cuGraphInstantiate(&hCommandBuffer->CudaGraphExec,
                                       hCommandBuffer->CudaGraph, 0));
+#else
+    UR_CHECK_ERROR(cuGraphInstantiate(&hCommandBuffer->CudaGraphExec,
+                                      hCommandBuffer->CudaGraph, nullptr, nullptr, 0));
+#endif
   } catch (...) {
     return UR_RESULT_ERROR_UNKNOWN;
   }