[js/node] add proxy agent support for onnxruntime-node install script (#23232)

### Description
Add proxy agent to fetch request



### Motivation and Context
Fixes #23231

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Signed-off-by: Junze Wu <junze.wu@intel.com>
Co-authored-by: Yulong Wang <7679871+fs-eire@users.noreply.github.com>

Author: jnzw