`ELECTRON_GET_USE_PROXY` excluded from integrated terminal environments

Does this issue occur when all extensions are disabled?: Yes

- VS Code Version: 1.127.0
- OS Version: Windows 11 Enterprise, 10.0.26200 Build 26200

Steps to Reproduce:

`ELECTRON_GET_USE_PROXY` is used in the Electron download performed by [`electron/get`](https://github.com/electron/get) to enable proxy rerouting. It's very confusing that the download doesn't work when it's run from an integrated terminal session. It works well outside of VS Code.

One solution would be to use a different variable without the `ELECTRON_` prefix in `electron/get`. But since the variable doesn't have an effect on running Electron instances (especially the one hosting VS Code itself), it'd be safe to exclude it from the exclusion.