Create new feature flag

config/feature_flags/development/read_from_vulnerability_finding_evidence.yml

+---
+name: read_from_vulnerability_finding_evidence
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/79883
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/352632
+milestone: '14.8'
+type: development
+group: group::threat insights
+default_enabled: false

ee/app/models/vulnerabilities/finding.rb

@@ -291,7 +291,7 @@ module Vulnerabilities
     end
 
     def evidence
-      evidence_data = finding_evidence.present? && Feature.enabled?(:vulnerability_finding_replace_metadata) ? finding_evidence.data : metadata.dig('evidence')
+      evidence_data = finding_evidence.present? && Feature.enabled?(:read_from_vulnerability_finding_evidence) ? finding_evidence.data : metadata.dig('evidence')
 
       {
         summary: evidence_data&.dig('summary'),

ee/spec/models/vulnerabilities/finding_spec.rb

@@ -909,7 +909,7 @@ RSpec.describe Vulnerabilities::Finding do
           let(:evidence) { finding.metadata['evidence'] }
 
           before do
-            stub_feature_flags(vulnerability_finding_replace_metadata: false)
+            stub_feature_flags(read_from_vulnerability_finding_evidence: false)
           end
 
           include_examples 'evidence schema'
@@ -919,7 +919,7 @@ RSpec.describe Vulnerabilities::Finding do
           let(:evidence) { finding_evidence.data }
 
           before do
-            stub_feature_flags(vulnerability_finding_replace_metadata: true)
+            stub_feature_flags(read_from_vulnerability_finding_evidence: true)
           end
 
           include_examples 'evidence schema'