Fix branch API tests, by moving to correct context

spec/requests/api/branches_spec.rb

@@ -313,18 +313,18 @@ describe API::Branches do
             expect(json_response['developers_can_merge']).to eq(true)
           end
         end
-      end
 
-      context "when no one can push" do
-        let(:protected_branch) { create(:protected_branch, :no_one_can_push, project: project, name: 'protected_branch') }
+        context "when no one can push" do
+          let(:protected_branch) { create(:protected_branch, :no_one_can_push, project: project, name: 'protected_branch') }
 
-        it "updates 'developers_can_push' without removing the 'no_one' access level" do
-          put api("/projects/#{project.id}/repository/branches/#{protected_branch.name}/protect", user),
-              developers_can_push: true, developers_can_merge: true
+          it "updates 'developers_can_push' without removing the 'no_one' access level" do
+            put api("/projects/#{project.id}/repository/branches/#{protected_branch.name}/protect", user),
+                developers_can_push: true, developers_can_merge: true
 
-          expect(response).to have_http_status(200)
-          expect(json_response['name']).to eq(protected_branch.name)
-          expect(protected_branch.reload.push_access_levels.pluck(:access_level)).to include(Gitlab::Access::NO_ACCESS)
+            expect(response).to have_gitlab_http_status(200)
+            expect(json_response['name']).to eq(protected_branch.name)
+            expect(protected_branch.reload.push_access_levels.pluck(:access_level)).to include(Gitlab::Access::NO_ACCESS)
+          end
         end
       end
     end