message: Filter out deleted files in changed file list
diff: @@ -49,6 +49,7 @@ const internalCheck = async (checkOptions: CheckOptions) => {
  }
  const changedJsonFiles = (await pr.diff())
  + .filter(change => change.kind !== 'Deleted')
  .map(change => change.path)
  .filter(filePath => filePath.endsWith('.json') && filePath.startsWith('specification/'));
  if (changedJsonFiles.length === 0) {
  