Trying to upgrade for marked version 13.0.2 and getting following error in debug console when run npm run watch:client. Unexpected token (254:15) while parsing .. node_modulesmarkedlibmarked.umd.js.It is specifically in marked.umd.js and class _tokenizer section.

Below is the details of the error:
PS project path> npm run watch:client

> [email protected] watch:client
> gulp

[14:17:00] Using gulpfile ...gulpfile.js
[14:17:00] Starting 'default'...
[14:17:00] Starting 'lint'...
[14:17:03] Finished 'lint' after 2.9 s
[14:17:03] Starting 'sass'...
WARNING on line 107, column 40 of .../assets/styles/vendor/neat/grid/_omega.scss:
In Sass, "&&" means two copies of the parent selector. You probably want to use "and" instead.

[14:17:07] Finished 'sass' after 4.56 s
[14:17:07] Starting 'scripts'...
[14:17:08] 'scripts' errored after 1.25 s
[14:17:08] SyntaxError: Unexpected token (254:15) while parsing file: ...node_modulesmarkedlibmarked.umd.js
    at DestroyableTransform.end [as _flush] (..node_modulesinsert-module-globalsindex.js:96:21)
    at DestroyableTransform.prefinish (...node_modulesreadable-streamlib_stream_transform.js:138:10)
    at DestroyableTransform.emit (node:events:517:28)
    at DestroyableTransform.emit (node:domain:552:15)
    at prefinish (...node_modulesreadable-streamlib_stream_writable.js:619:14)
    at finishMaybe (....node_modulesreadable-streamlib_stream_writable.js:627:5)
    at endWritable (...node_modulesreadable-streamlib_stream_writable.js:638:3)
    at Writable.end (...node_modulesreadable-streamlib_stream_writable.js:594:22)
    at DestroyableTransform.onend (...node_modulesreadable-streamlib_stream_readable.js:577:10)
    at Object.onceWrapper (node:events:631:28)
    at DestroyableTransform.emit (node:events:529:35)
    at DestroyableTransform.emit (node:domain:552:15)
    at endReadableNT (...node_modulesreadable-streamlib_stream_readable.js:1010:12)
    at process.processTicksAndRejections (node:internal/process/task_queues:82:21)

    var fs = require('fs');
    
    // Include gulp
    var gulp = require('gulp');
    
    // Include Our Plugins
    var eslint = require('gulp-eslint');
    var sass = require('gulp-sass')(require('node-sass'));
    var bro = require('gulp-bro');
    var stringify = require('stringify');
    var babelify = require('babelify');
    var uglify = require('gulp-uglify-es').default;
    var sourcemaps = require('gulp-sourcemaps');
    var rename = require('gulp-rename');
    var merge = require('merge-stream');
    
    var releaseFiles = [
      '**/*',
      '!.nyc_output/**/*',
      '!./{assets,assets/**}',
      '!./{bin,bin/**}',
      '!./{coverage,coverage/**}',
      '!dist/js/{maps,maps/**}',
      '!./{docs,docs/**}',
      '!./{test,test/**}',
    ];
    
    var versionBumps = {
      '--patch': 'patch',
      '--minor': 'minor',
      '--major': 'major',
    };
    
    function getOptions () {
      var argList = process.argv.splice(2);
      var args = {};
      var curOpt = null;
      for (i = 0; i < argList.length; i++) {
        thisOpt = argList[i].trim();
        opt = thisOpt.replace(/^-+/, '');
        if (opt === thisOpt) { // argument value
          if (curOpt) args[curOpt] = opt;
          curOpt = null;
        } else { // argument name
          curOpt = opt;
          args[curOpt] = true;
        }
      }
      return args;
    }
    
    // Lint Task
    gulp.task('lint', function () {
      return gulp.src('assets/js/backbone/**/*.js')
        .pipe(eslint())
        .pipe(eslint.format())
        .pipe(eslint.failAfterError());
    });
    
    // Compile Our Sass
    gulp.task('sass', function () {
      return gulp.src('assets/styles/main.scss')
        .pipe(sass())
        .pipe(gulp.dest('dist/styles'));
    });
    
    gulp.task('dependencies', function () {
      var uswdsComponents = gulp.src(['./node_modules/uswds/src/js/**'])
        .pipe(gulp.dest('assets/js/vendor/uswds'));
    
      return merge(uswdsComponents);
    });
    
    // Concatenate & Minify JS
    gulp.task('scripts', function () {
      return gulp.src('assets/js/backbone/app.js')
        .pipe(bro({ error: 'emit', transform: [ 
          babelify.configure({ presets: ['@babel/env'] }),
          stringify,
        ]}))
        .pipe(rename('bundle.min.js'))
        .pipe(sourcemaps.init())
        .pipe(uglify())
        .pipe(sourcemaps.write('./maps'))
        .pipe(gulp.dest('dist/js'));
    });
    
    // Move additional resources
    gulp.task('move', function () {
      var files = gulp.src(['./assets/files/**'])
        .pipe(gulp.dest('dist/files'));
      var fonts = gulp.src(['./assets/fonts/**'])
        .pipe(gulp.dest('dist/fonts'));
      var images = gulp.src(['./assets/images/**'])
        .pipe(gulp.dest('dist/images'));
      var uswds_images = gulp.src(['./node_modules/uswds/dist/img/**'], { ignore: ['./node_modules/uswds/dist/img/favicons/*']})
        .pipe(gulp.dest('dist/img')); 
      var img = gulp.src(['./assets/img/**'])
        .pipe(gulp.dest('dist/img'));
      var locales = gulp.src(['./assets/locales/**'])
        .pipe(gulp.dest('dist/locales'));
      var assets = gulp.src(['./assets/*.*'])
        .pipe(gulp.dest('dist'));
      var fontawesome = gulp.src(['./assets/js/vendor/fontawesome-all.js'])
        .pipe(gulp.dest('dist/js'));
      var uswds = gulp.src(['./node_modules/uswds/dist/js/uswds.min.js'])
        .pipe(gulp.dest('dist/js'));
      var croppie = gulp.src(['./node_modules/croppie/croppie.min.js'])
        .pipe(gulp.dest('dist/js'));
      var multijs = gulp.src(['./node_modules/multi.js/dist/multi.min.js'])
        .pipe(gulp.dest('dist/js'));
      
      return merge(files, fonts, images, uswds_images, img, locales, assets, fontawesome, uswds, croppie ,multijs);
    });
    
    // Watch Files For Changes
    gulp.task('watch', function () {
      gulp.watch('assets/js/backbone/**', gulp.series('lint', 'scripts'));
      gulp.watch('assets/js/utils/**', gulp.series('lint', 'scripts'));
      gulp.watch('assets/styles/**', gulp.series('sass'));
    });
    
    // Build task
    gulp.task('build', gulp.series('lint', 'sass', 'dependencies', 'scripts', 'move'));
    
    // Bump package version number
    gulp.task('bump', function () {
      var type = versionBumps[process.argv[3]];
      if(!type) {
        throw new Error('When calling `gulp bump` you must specify one of these options: ' + Object.keys(versionBumps));
      }
      var bump = require('gulp-bump');
      return gulp.src('./package.json')
        .pipe(bump({ type: type }))
        .pipe(gulp.dest('./'));
    });
    
    // Clean bin directory
    gulp.task('clean', function () {
      const clean = require('gulp-clean');
      return gulp.src('./bin', { read: false, allowEmpty: true }).pipe(clean());
    });
    
    gulp.task('args', function (done) {
      console.log(getOptions());
      done();
    });
    
    // TFS build task
    gulp.task('tfs-build', gulp.series('clean', 'build', function (done) {
      done();
    }));
    
    //Default task
    gulp.task('default', gulp.series('lint', 'sass', 'scripts', 'move', 'watch'));```