Rename findings variable to vulnerabilities

ee/app/services/security/vulnerability_counting_service.rb

@@ -13,8 +13,8 @@ module Security
     end
 
     def execute
-      findings = ::Security::PipelineVulnerabilitiesFinder.new(pipeline: @pipeline, params: { report_type: @report_types }).execute
-      findings.findings.group_by(&:report_type).compact.transform_values(&:size).reverse_merge(no_counts)
+      vulnerabilities = ::Security::PipelineVulnerabilitiesFinder.new(pipeline: @pipeline, params: { report_type: @report_types }).execute
+      vulnerabilities.findings.group_by(&:report_type).compact.transform_values(&:size).reverse_merge(no_counts)
     end
 
     private