Fernando Hamasaki de Amorim

@claudioalcantara Thank for your PR. The need to duplicate a string before changing its encoding is a Ruby requirement, not a Rails 6 requirement, right? Do you know from each...

@pedrofurtado Thank you for your PR. But what is the motivation to move the CI from Travis to GitHub Actions?

I see that GitHub Actions is trending, but you didn't mentioned any real advantage comparing to the current CI in Travis. In fact, the GitHub Actions configuration you proposed is...

Similar error requests with error responses in the sibling [Elixir library](https://github.com/prodis/correios-cep-elixir): ```elixir iex(1)> Correios.CEP.find_address("11111111") {:error, %Correios.CEP.Error{ message: "Unknown error", reason: "CEP INVÁLIDO", type: :unknown }} iex(2)> Correios.CEP.find_address("12345678") {:error, %Correios.CEP.Error{ message:...

Related to https://github.com/prodis/correios-cep/issues/27.

Mainly to eliminate dependencies (since `httpc` is Erlang native) and avoid possible version conflicts for `Correios CEP` clients, that could be using a different version of `HTTPoison`.

🍆 https://github.com/benoitc/hackney/issues/591

Mojito is a potential candidate. https://github.com/appcues/mojito

Integration tests using different Elixir/Erlang HTTP clients: https://github.com/prodis/correios-cep-elixir/tree/http_clients/test/integration

One more HTTP client to evaluate: https://github.com/keathley/finch