ado-npm-auth doesn't install on arm64 Windows

[jtippet]

On an arm64 edition of Windows 11:

PS C:\x> npm i ado-npm-auth
npm error code 1
npm error path C:\x\node_modules\azureauth
npm error command failed
npm error command C:\WINDOWS\system32\cmd.exe /d /s /c node ./scripts/install.cjs
npm error C:\x\node_modules\azureauth\bin directory was created
npm error Install failed: Arch is not supported in azureauth
npm error Install failed: Arch is not supported in azureauth
npm error Install failed: Arch is not supported in azureauth
npm error Error: Install failed after 3 attempts
npm error     at Xu (C:\x\node_modules\azureauth\dist\install.cjs:5:81770)
npm error     at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
npm error A complete log of this run can be found in: %localappdata%\npm-cache\_logs\2024-12-31T19_45_20_258Z-debug-0.log

Presumably this occurs because the install script doesn't have an entry for arm64.

Possible fixes, in descending order of preference:

1. Compile an arm64-native version of azureauth.exe and update install.ts to link to it
2. Merely update install.ts to point arm64 machines at the x64 binary -- many arm64 versions of Windows are capable of running x64 binaries well enough
3. Update install.ts to give a clear error message, something like "We don't yet support ARM64 on Windows. For more information, see ado-npm-auth doesn't install on arm64 Windows #59"

If you don't have an arm64 version of Windows handy, please send me an email and I'll help you test any fixes you make here.