message: filter out specs-used artifact
diff: @@ -12,7 +12,7 @@ import { Dictionary, values, keys, items } from '@microsoft.azure/linq';
  async function deduplicate(config: ConfigurationView, input: DataSource, sink: DataSink) {
  const inputs = await Promise.all((await input.Enum()).map(async x => input.ReadStrict(x)));
  const result: Array<DataHandle> = [];
  - for (const each of values(inputs).linq.where(input => input.artifactType !== 'azure-profile')) {
  + for (const each of values(inputs).linq.where(input => input.artifactType !== 'specs-used')) {
  const deduplicator = new Deduplicator(await each.ReadObject());
  result.push(await sink.WriteObject('model-deduplicated-oai3-doc', deduplicator.output, each.identity, 'deduplicated-oai3', [/* fix-me: Construct source map from the mappings returned by the deduplicator.s*/]));
  