cherry-pick(#29684): chore: fix docs roll for functions without args

Author: github-actions[bot]

utils/doclint/documentation.js

@@ -737,7 +737,8 @@ function parseTypeExpression(type) {
     if (type[i] === '(') {
       name = type.substring(0, i);
       const matching = matchingBracket(type.substring(i), '(', ')');
-      args = parseTypeExpression(type.substring(i + 1, i + matching - 1));
+      const argsString = type.substring(i + 1, i + matching - 1);
+      args = argsString ? parseTypeExpression(argsString) : null;
       i = i + matching;
       if (type[i] === ':') {
         retType = parseTypeExpression(type.substring(i + 1));