[Fix] Check if CUDA is downloaded in AGENT_TEMPDIRECTORY (microsoft#1…

…6142)

### Description
supplement of microsoft#15915

### Motivation and Context
fix nuget pipeline exception in the stage of
Final_Jar_Testing_Windows_GPU

```
  JUnit Jupiter:ProviderOptionsTest:testCUDAOptions()
    MethodSource [className = 'ai.onnxruntime.providers.ProviderOptionsTest', methodName = 'testCUDAOptions', methodParameterTypes = '']
    => ai.onnxruntime.OrtException: Error code - ORT_RUNTIME_EXCEPTION - message: D:\a\_work\1\s\onnxruntime\core\session\provider_bridge_ort.cc:1131 onnxruntime::ProviderLibrary::Get [ONNXRuntimeError] : 1 : FAIL : LoadLibrary failed with error 126 "" when trying to load "C:\Users\cloudtest\AppData\Local\Temp\onnxruntime-java17193857285260738736\onnxruntime_providers_cuda.dll"
```


### Verification

https://dev.azure.com/aiinfra/Lotus/_build/results?buildId=313476&view=results

tools/ci_build/github/windows/setup_env_cuda_11.bat

@@ -1,5 +1,9 @@
 REM Copyright (c) Microsoft Corporation. All rights reserved.
 REM Licensed under the MIT License.
 
-set PATH=%AGENT_TEMPDIRECTORY%\v11.8\bin;%AGENT_TEMPDIRECTORY%\v11.8\extras\CUPTI\lib64;%PATH%
+if exist PATH=%AGENT_TEMPDIRECTORY%\v11.8\ {
+    set PATH=%AGENT_TEMPDIRECTORY%\v11.8\bin;%AGENT_TEMPDIRECTORY%\v11.8\extras\CUPTI\lib64;%PATH%
+} else {
+    set PATH=C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.8\bin;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.8\extras\CUPTI\lib64;%PATH%
+}
 set GRADLE_OPTS=-Dorg.gradle.daemon=false