refactor(connector): [Itaubank] add dynamic fields for pix

[Sakilmostak]

Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates
• Documentation
• CI/CD

Description

Added mandatory fields for pix in dynamic field

Additional Changes

• This PR modifies the API contract
• This PR modifies the database schema
• This PR modifies application configuration/environment variables

Motivation and Context

How did you test it?

Through postman:

• Do a payment method list call:
• The response should contain the following value

"required_fields": {
                        "payment_method_data.bank_transfer.pix.cpf": {
                            "required_field": "payment_method_data.bank_transfer.pix.cpf",
                            "display_name": "cpf",
                            "field_type": "user_cpf",
                            "value": null
                        },
                        "payment_method_data.bank_transfer.pix.pix_key": {
                            "required_field": "payment_method_data.bank_transfer.pix.pix_key",
                            "display_name": "pix_key",
                            "field_type": "user_pix_key",
                            "value": null
                        },
                        "payment_method_data.bank_transfer.pix.cnpj": {
                            "required_field": "payment_method_data.bank_transfer.pix.cnpj",
                            "display_name": "cnpj",
                            "field_type": "user_cnpj",
                            "value": null
                        }
                    },

Checklist

• I formatted the code cargo +nightly fmt --all
• I addressed lints thrown by cargo clippy
• I reviewed the submitted code
• I added unit tests for my changes where possible