Remove Windows 32-bit Support

[jennifer-shehane]

What would you like?

Drop official support for Win32 operating system.

Why is this needed?

The main goal is to move our internal testing off of Appveyor, it’s slow to run tests, so it slows down every single PR we make. We are only using Appveyor because we cannot test Win32 in CircleCI.

Previous in progress work: #5550

Other

From initial findings, it seems testing Cypress in Win32 is not widely used, but we'd love to hear from anyone about how this may impact their testing.

[flotwig]

To provide some context on why we feel this change should not impact users too adversely:

• Over the last 30 days, 0.3% of Cypress's Windows desktop-gui users have been on Windows 32-bit. 99.7% are using Windows 64-bit.
• On May 13, 2020, Microsoft stopped allowing OEMs to sell new machines with Windows 32-bit.
• Neither Intel nor AMD has sold a desktop CPU that lacks 64-bit support in a long time.

[cypress-bot]

The code for this is done in cypress-io/cypress#18630, but has yet to be released.
We'll update this issue and reference the changelog when it's released.

[cypress-bot]

Released in 9.0.0.

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