feat(connector): [Itaubank] Add refund and rsync flow  (#5420)
Files to modify:


**router_request_types.rs**
  Modify existing code

**consts.rs**
  Modify existing code

**itaubank.rs**
  Modify existing code

**transformers.rs**
  Add:
    - struct: pub::ItaubankPixResponse
    - struct: pub::ItaubankMetaData

**utils.rs**
  Remove:
    - function: private::get_browser_info
  Add:
    - function: private::get_connector_metadata

**transformers.rs**
  Add:
    - struct: pub::ItaubankPixResponse
    - struct: pub::ItaubankMetaData

**bambora.rs**
  Modify existing code

**forte.rs**
  Modify existing code

**nexinets.rs**
  Modify existing code

**paypal.rs**
  Modify existing code

**utils.rs**
  Remove:
    - function: private::get_browser_info
  Add:
    - function: private::get_connector_metadata

**zen.rs**
  Modify existing code