add mutations to questions and reviews

lib/tasks/graphql.rake

@@ -0,0 +1,11 @@
+namespace :graphql do
+  desc "Dump graphql schema to app/graphql/__generated__/schema.graphql"
+  task dump: :environment do
+    File.write(
+      Rails.root.join(ProgressTestSchema::DEFINITION_DUMP_PATH),
+      ProgressTestSchema.to_definition
+    )
+
+    puts("#{ProgressTestSchema::DEFINITION_DUMP_PATH} updated")
+  end
+end