Fix RSpec/MessageSpies cop (#27751)

spec/spec_helper.rb

@@ -53,7 +53,9 @@ def json_str_to_hash(str)
 end
 
 def expect_push_bulk_to_match(klass, matcher)
-  expect(Sidekiq::Client).to receive(:push_bulk).with(hash_including({
+  allow(Sidekiq::Client).to receive(:push_bulk)
+  yield
+  expect(Sidekiq::Client).to have_received(:push_bulk).with(hash_including({
     'class' => klass,
     'args' => matcher,
   }))