Update nightly pytorch standalone to python 3.11.3 cu121.

.ci/nightly/update_windows/update_comfyui_and_python_dependencies.bat

 ..\python_embeded\python.exe .\update.py ..\ComfyUI\
-..\python_embeded\python.exe -s -m pip install --upgrade --pre torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/nightly/cu118 -r ../ComfyUI/requirements.txt pygit2
+..\python_embeded\python.exe -s -m pip install --upgrade --pre torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/nightly/cu121 -r ../ComfyUI/requirements.txt pygit2
 pause

.github/workflows/windows_release_nightly_pytorch.yml

@@ -19,21 +19,21 @@ jobs:
             fetch-depth: 0
         - uses: actions/setup-python@v4
           with:
-            python-version: '3.10.9'
+            python-version: '3.11.3'
         - shell: bash
           run: |
             cd ..
             cp -r ComfyUI ComfyUI_copy
-            curl https://www.python.org/ftp/python/3.10.9/python-3.10.9-embed-amd64.zip -o python_embeded.zip
+            curl https://www.python.org/ftp/python/3.11.3/python-3.11.3-embed-amd64.zip -o python_embeded.zip
             unzip python_embeded.zip -d python_embeded
             cd python_embeded
-            echo 'import site' >> ./python310._pth
+            echo 'import site' >> ./python311._pth
             curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
             ./python.exe get-pip.py
-            python -m pip wheel torch torchvision torchaudio --pre --extra-index-url https://download.pytorch.org/whl/nightly/cu118 -r ../ComfyUI/requirements.txt pygit2 -w ../temp_wheel_dir
+            python -m pip wheel torch torchvision torchaudio --pre --extra-index-url https://download.pytorch.org/whl/nightly/cu121 -r ../ComfyUI/requirements.txt pygit2 -w ../temp_wheel_dir
             ls ../temp_wheel_dir
             ./python.exe -s -m pip install --pre ../temp_wheel_dir/*
-            sed -i '1i../ComfyUI' ./python310._pth
+            sed -i '1i../ComfyUI' ./python311._pth
             cd ..