fix: correct types on ICustomerMetadata

[HenriqueRamos13]

Pull Request - AbacatePay SDK

Issue Relacionada

Closes #62

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Descrição

An update on ICustomerMetadata type changing name, taxId and cellphone fields to required because if you dont pass one of this fields you receive one of this errors:

{ error: "body/customer must have required property 'name'" }
{ error: "body/customer must have required property 'cellphone'" }
{ error: "body/customer must have required property 'taxId'" }

And on the actual SDK the types are optional, same on the example code in README.md

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• Documentação foi atualizada, se aplicável.

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