Stop using Finch as Swoosh http client

elixir/apps/web/mix.exs

@@ -62,6 +62,7 @@ defmodule Web.MixProject do
       {:observer_cli, "~> 1.7"},
 
       # Mailer deps
+      {:hackney, "~> 1.20"},
       {:phoenix_swoosh, "~> 1.0"},
       {:gen_smtp, "~> 1.0"},
 

elixir/config/config.exs

@@ -201,7 +201,9 @@ config :logger, :console,
 # Use Jason for JSON parsing in Phoenix
 config :phoenix, :json_library, Jason
 
-config :swoosh, :api_client, Swoosh.ApiClient.Finch
+# TODO: This is buggy, the return value is different
+# from the one you would get with Hackney:
+# config :swoosh, :api_client, Swoosh.ApiClient.Finch
 
 config :web, Web.Mailer,
   adapter: Domain.Mailer.NoopAdapter,