Quarantine vulnerability spec to reduce impact to master

Relates to https://gitlab.com/gitlab-org/gitlab/-/issues/338073

ee/spec/graphql/types/vulnerability_type_spec.rb

@@ -131,7 +131,7 @@ RSpec.describe GitlabSchema.types['Vulnerability'] do
         create(:vulnerabilities_flag, finding: vulnerability_with_finding.finding)
       end
 
-      it 'returns true for false positive field' do
+      it 'returns true for false positive field', quarantine: 'https://gitlab.com/gitlab-org/gitlab/-/issues/338073' do
         vulnerabilities = subject.dig('data', 'project', 'vulnerabilities', 'nodes')
 
         expect(vulnerabilities.first['falsePositive']).to be(true)