Replace owner with first_owner in policy specs

spec/policies/ci/pipeline_policy_spec.rb

@@ -89,7 +89,7 @@ RSpec.describe Ci::PipelinePolicy, :models do
       let(:project) { create(:project, :public) }
 
       context 'when user has owner access' do
-        let(:user) { project.owner }
+        let(:user) { project.first_owner }
 
         it 'is enabled' do
           expect(policy).to be_allowed :destroy_pipeline
@@ -107,7 +107,7 @@ RSpec.describe Ci::PipelinePolicy, :models do
       let(:project) { create(:project, :public) }
 
       context 'when user has owner access' do
-        let(:user) { project.owner }
+        let(:user) { project.first_owner }
 
         it 'is enabled' do
           expect(policy).to be_allowed :read_pipeline_variable
@@ -129,7 +129,7 @@ RSpec.describe Ci::PipelinePolicy, :models do
       end
 
       context 'when user is developer and it is not the creator of the pipeline' do
-        let(:pipeline) { create(:ci_empty_pipeline, project: project, user: project.owner) }
+        let(:pipeline) { create(:ci_empty_pipeline, project: project, user: project.first_owner) }
 
         before do
           project.add_developer(user)

spec/policies/namespaces/project_namespace_policy_spec.rb

@@ -28,7 +28,7 @@ RSpec.describe Namespaces::ProjectNamespacePolicy do
   end
 
   context 'parent owner' do
-    let_it_be(:current_user) { parent.owner }
+    let_it_be(:current_user) { parent.first_owner }
 
     it { is_expected.to be_disallowed(*permissions) }
   end

spec/policies/project_member_policy_spec.rb

@@ -24,7 +24,7 @@ RSpec.describe ProjectMemberPolicy do
   end
 
   context 'when user is project owner' do
-    let(:member_user) { project.owner }
+    let(:member_user) { project.first_owner }
     let(:member) { project.members.find_by!(user: member_user) }
 
     it { is_expected.to be_allowed(:read_project) }

spec/policies/project_policy_spec.rb

@@ -117,7 +117,7 @@ RSpec.describe ProjectPolicy do
     end
 
     describe 'for unconfirmed user' do
-      let(:current_user) { project.owner.tap { |u| u.update!(confirmed_at: nil) } }
+      let(:current_user) { project.first_owner.tap { |u| u.update!(confirmed_at: nil) } }
 
       it 'disallows to modify pipelines' do
         expect_disallowed(:create_pipeline)
@@ -144,7 +144,7 @@ RSpec.describe ProjectPolicy do
       end
 
       describe 'for project owner' do
-        let(:current_user) { project.owner }
+        let(:current_user) { project.first_owner }
 
         it 'allows :destroy_pipeline' do
           expect(current_user.can?(:destroy_pipeline, pipeline)).to be_truthy