Setup Cypress for E2E testing

[iamdharmesh]

Is your enhancement related to a problem? Please describe.

Setup Cypress for E2E testing and remove existing wpacceptance tests.

• add base GitHub Action
• add .wp-env.json
• update package.json / package lock files
• add cypress tests

Designs

No response

Describe alternatives you've considered

No response

Code of Conduct

• I agree to follow this project's Code of Conduct