Angular 单元测试失败，出现无法启动错误

我试图在Gitlab Runner机器上运行单元测试，单元测试的命令是

npm run test:unit

。这将为我拥有的Angular 10应用程序运行Karma单元测试

但是，运行该命令后，我得到以下错误：

27 10 2020 00:00:31.695:ERROR [launcher]: Cannot start Chrome
    /builds/platform-one/products/cybertron/cyberlynx-jhi-fe/node_modules/puppeteer/.local-chromium/linux-686378/chrome-linux/chrome: error while loading shared libraries: libX11.so.6: cannot open shared object file: No such file or directory

我当前无法编辑代码运行的Gitlab runner/服务器。有没有什么方法可以暂时禁止我的karma测试运行Chrome

这是我的karma.conf.js文件：

process.env.CHROME_BIN = require('puppeteer').executablePath()

module.exports = function (config) {
    config.set({
      basePath: '',
      frameworks: ['jasmine', '@angular-devkit/build-angular'],
      plugins: [
        require('karma-jasmine'),
        require('karma-chrome-launcher'),
        require('karma-jasmine-html-reporter'),
        require('karma-coverage-istanbul-reporter'),
        require('@angular-devkit/build-angular/plugins/karma')
      ],
      client: {
        clearContext: false // leave Jasmine Spec Runner output visible in browser
      },
      coverageIstanbulReporter: {
        dir: require('path').join(__dirname, './coverage/angular-testing'),
        reports: ['html', 'lcovonly', 'text-summary'],
        fixWebpackSourcePaths: true
      },
      reporters: ['progress', 'kjhtml'],
      port: 9876,
      colors: true,
      logLevel: config.LOG_INFO,
      autoWatch: true,
      browsers: ['ChromeHeadless'],
      customLaunchers: {
        'ChromeHeadless': {
          base: 'Chrome',
          flags: [
            '--no-sandbox',
            '--headless',
            '--disable-gpu',
            '--remote-debugging-port=9222'
          ]
        }
      },
      singleRun: false,
      restartOnFileChange: true
    });
  };