Catch orchestrator errors like "permission denied"

Print better data when something goes wrong. Example: when the token
used to connect to the orchestrator is not permitted to perform the
requested operation.

Author: reidmv

tasks/puppet_infra_upgrade.rb

@@ -73,7 +73,9 @@ def wait_until_connected(nodes:, token_file:, timeout: 120)
         Timeout.timeout(timeout) do
           loop do
             response = http.request(request)
-            raise unless response.is_a? Net::HTTPSuccess
+            unless response.is_a? Net::HTTPSuccess
+              raise "Unexpected result from orchestrator: #{response.class}\n#{response}"
+            end
             inventory = JSON.parse(response.body)
             break if inventory['items'].all? { |item| item['connected'] }
             sleep(1)