DEV: Log more information for user json response

Why this change?

Currently we are only logging the `Faraday::Response` object which is
not very useful because it doesn't show the response status code.

plugin.rb

@@ -231,7 +231,7 @@ class ::OAuth2BasicAuthenticator < Auth::ManagedAuthenticator
     headers = { "Authorization" => bearer_token, "Accept" => "application/json" }
     user_json_response = connection.run_request(user_json_method, user_json_url, nil, headers)
 
-    log("user_json_response: #{user_json_response.inspect}")
+    log("user_json_response: (#{user_json_response.status}) #{user_json_response.inspect}")
 
     if user_json_response.status == 200
       user_json = JSON.parse(user_json_response.body)