Fix `register_job_service_spec` failures

app/services/ci/register_job_service.rb

@@ -90,7 +90,8 @@ module Ci
 
     def builds_for_group_runner
       # Workaround for weird Rails bug, that makes `runner.groups.to_sql` to return `runner_id = NULL`
-      groups = Group.joins(:runner_namespaces).where(runner_namespaces: { runner_id: runner })
+      groups = Group.joins(:runner_namespaces).merge(runner.runner_namespaces)
+
       hierarchy_groups = Gitlab::GroupHierarchy.new(groups).base_and_descendants
       projects = Project.where(namespace_id: hierarchy_groups)
         .with_group_runners_enabled

spec/services/ci/register_job_service_spec.rb

@@ -320,7 +320,7 @@ module Ci
       end
 
       context 'when access_level of runner is ref_protected' do
-        let!(:specific_runner) { create(:ci_runner, :ref_protected, :specific) }
+        let!(:specific_runner) { create(:ci_runner, :project, :ref_protected, projects: [project]) }
 
         context 'when a job is protected' do
           let!(:pending_job) { create(:ci_build, :protected, pipeline: pipeline) }