[backend] Added samples to malware add input

opencti-platform/opencti-front/src/schema/relay.schema.graphql

@@ -4320,6 +4320,7 @@ input MalwareAddInput {
   objectLabel: [String]
   externalReferences: [String]
   killChainPhases: [String]
+  samples: [String]
   created: DateTime
   modified: DateTime
   x_opencti_workflow_id: String