feat: detect arch from CYPRESS_ARCH

[saschanaz]

• Allow workaround for Win32-Arm64 Is not supported.  #30252

Additional details

Steps to test

Set $CYPRESS_ARCH when npm install

How has the user experience changed?

PR Tasks

• Have tests been added/updated?
• Has a PR for user-facing changes been opened in cypress-documentation?
• [na] Have API changes been updated in the type definitions?

(I want to get some feedback before checking PR tasks)

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[cypress-app-bot]

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[MikeMcC399]

@saschanaz

See comment in #30252 (comment). I would expect that any change to allow win32-arm64 usage would need CI support for this architecture, so it may be too early for a PR to modify the installation process.

[saschanaz]

I edited previous comment, the validation bypass is the only actual missing part. I'll open another PR.