Geo: remove quarantine for Secondary::ShardWorker

ee/spec/workers/geo/repository_verification/secondary/shard_worker_spec.rb

@@ -96,7 +96,7 @@
       let(:project6_both_verified) { create(:repository_state, :repository_verified, :wiki_verified).project }
 
       # https://gitlab.com/gitlab-org/gitlab-ee/issues/12455
-      it 'handles multiple batches of projects needing verification', :quarantine do
+      it 'handles multiple batches of projects needing verification' do
         reg1 = create(:geo_project_registry, :synced, :repository_verification_outdated, project: project1_repo_verified)
         reg2 = create(:geo_project_registry, :synced, :repository_verification_outdated, project: project2_repo_verified)
 
@@ -112,7 +112,7 @@
       end
 
       # https://gitlab.com/gitlab-org/gitlab-ee/issues/12455
-      it 'handles multiple batches of projects needing verification, skipping failed repos', :quarantine do
+      it 'handles multiple batches of projects needing verification, skipping failed repos' do
         reg1 = create(:geo_project_registry, :synced, :repository_verification_outdated, project: project1_repo_verified)
         reg2 = create(:geo_project_registry, :synced, :repository_verification_outdated, project: project2_repo_verified)
         create(:geo_project_registry, :synced, :repository_verification_outdated, project: project3_repo_failed)