feat(cypress): add Amazon Pay refund test suite
- Add Amazonpay.js connector config with wallet/amazon_pay support
- Add 47-AmazonPayRefund.cy.js spec with 19 tests
- Update Utils.js with amazonpay mapping
- Update Modifiers.js with amazonpay normalization
Co-Authored-By: Paperclip <noreply@paperclip.ing>