fix Elastic spec

spec/workers/elastic_commit_indexer_worker_spec.rb

 require 'spec_helper'
 
 describe ElasticCommitIndexerWorker do
-  let(:project) { create(:project) }
+  let!(:project) { create(:project) }
 
   subject { described_class.new }
 
@@ -12,6 +12,7 @@ describe ElasticCommitIndexerWorker do
 
     it 'runs indexer' do
       expect_any_instance_of(Gitlab::Elastic::Indexer).to receive(:run)
+
       subject.perform(project.id, '0000', '0000')
     end