(bug) update button fails due to socket-io CORS

[DamienChing]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Click on 'COMPARE SNAPSHOT'
2. Click on 'Update Snapshot'

Expected behavior
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Temp Solution (does not work for firefox)
add "chromeWebSecurity": true to cypress.json

Permanent Solution
you probably want upgrade socket-io and enable cors for all origins.
socket-io <2.4 had this enabled by default, but socket-io 2.2.0 had a bug where this was broken.
socketio/socket.io#3381

Screenshots

Desktop (please complete the following information):

• OS: OSX Big Sur
• Cypress Version: 4.5.0+

Additional context
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