Reduce amount of expected pipeline serialization queries in specs

spec/controllers/projects/pipelines_controller_spec.rb

@@ -36,7 +36,7 @@ describe Projects::PipelinesController do
       expect(json_response['count']['running']).to eq '1'
       expect(json_response['count']['pending']).to eq '1'
       expect(json_response['count']['finished']).to eq '2'
-      expect(queries.count).to be_within(2).of(29)
+      expect(queries.count).to be < 30
     end
 
     it 'does not include coverage data for the pipelines' do

spec/serializers/pipeline_serializer_spec.rb

@@ -120,7 +120,7 @@ describe PipelineSerializer do
         it 'verifies number of queries', :request_store do
           recorded = ActiveRecord::QueryRecorder.new { subject }
 
-          expect(recorded.count).to be_within(1).of(44)
+          expect(recorded.count).to be_within(1).of(38)
           expect(recorded.cached_count).to eq(0)
         end
       end
@@ -139,7 +139,7 @@ describe PipelineSerializer do
           # pipeline. With the same ref this check is cached but if refs are
           # different then there is an extra query per ref
           # https://gitlab.com/gitlab-org/gitlab-ce/issues/46368
-          expect(recorded.count).to be_within(1).of(51)
+          expect(recorded.count).to be_within(1).of(45)
           expect(recorded.cached_count).to eq(0)
         end
       end