🧹 Correct transactions names and set condition

This commit will fix names since it changed somewhere along the way. The
set child flag was being called when IIIF Print was not being used which
resulted in an error.  This commit will set the condition to only call
if the HYKU_IIIF_PRINT env var is true.

app/transactions/hyrax/transactions/iiif_print_container_decorator.rb

@@ -28,27 +28,29 @@ class IiifPrintContainerDecorator
         end
       end
 
-      namespace 'change_set' do |ops|
-        ops.register 'update_work' do
-          steps = Hyrax::Transactions::WorkUpdate::DEFAULT_STEPS.dup
-          steps.insert(steps.index('work_resource.update_work_members') + 1, 'work_resource.set_child_flag')
-          Hyrax::Transactions::WorkUpdate.new(steps: steps)
-        end
-      end
-
-      if defined?(Bulkrax::Container)
-        namespace 'work_resource' do |ops|
-          ops.register Bulkrax::Container::UPDATE_WITH_BULK_BEHAVIOR do
-            steps = Bulkrax::Container::UPDATE_WITH_BULK_BEHAVIOR_STEPS.dup
+      if ENV['HYKU_IIIF_PRINT']
+        namespace 'change_set' do |ops|
+          ops.register 'update_work' do
+            steps = Hyrax::Transactions::WorkUpdate::DEFAULT_STEPS.dup
             steps.insert(steps.index('work_resource.update_work_members') + 1, 'work_resource.set_child_flag')
             Hyrax::Transactions::WorkUpdate.new(steps: steps)
           end
         end
-      end
 
-      namespace 'work_resource' do |ops|
-        ops.register 'set_child_flag' do
-          Steps::SetChildFlag.new
+        if defined?(Bulkrax::Transactions::Container)
+          namespace 'work_resource' do |ops|
+            ops.register Bulkrax::Transactions::Container::UPDATE_WITH_BULK_BEHAVIOR do
+              steps = Bulkrax::Transactions::Container::UPDATE_WITH_BULK_BEHAVIOR_STEPS.dup
+              steps.insert(steps.index('work_resource.update_work_members') + 1, 'work_resource.set_child_flag')
+              Hyrax::Transactions::WorkUpdate.new(steps: steps)
+            end
+          end
+        end
+
+        namespace 'work_resource' do |ops|
+          ops.register 'set_child_flag' do
+            Steps::SetChildFlag.new
+          end
         end
       end
     end