HTTP redirects are not followed properly

[gianluca-nitti]

Using Hermes as a client with the streamable HTTP transport against a server that returns a 307 Temporary Redirect results in:

** (FunctionClauseError) no function clause matching in URI.new/1                                                                                                                                                  
    (elixir 1.18.4) lib/uri.ex:602: URI.new({"location", "http://127.0.0.1:9000/mcp"})                                                                                                                             
    (hermes_mcp 0.14.1) lib/hermes/http.ex:49: Hermes.HTTP.do_follow_redirect/3                                                                                                                                    
    (hermes_mcp 0.14.1) lib/hermes/transport/streamable_http.ex:272: Hermes.Transport.StreamableHTTP.do_send_http_request/3                                                                                        
    (hermes_mcp 0.14.1) lib/hermes/transport/streamable_http.ex:159: Hermes.Transport.StreamableHTTP.handle_call/3
    (stdlib 5.2.3.2) gen_server.erl:1131: :gen_server.try_handle_call/4                                  
    (stdlib 5.2.3.2) gen_server.erl:1160: :gen_server.handle_msg/6                                       
    (stdlib 5.2.3.2) proc_lib.erl:241: :proc_lib.init_p_do_apply/3