[Snyk] Upgrade async from 0.2.6 to 0.9.2

[snyk-bot]

Snyk has created this PR to upgrade async from 0.2.6 to 0.9.2.

• The recommended version is 15 versions ahead of your current version.
• The recommended version was released 4 years ago, on 2015-05-19.

Release notes

• Package name: async
  • 0.9.2 - 2015-05-19

      </li>
      <li>
        <b>0.9.0</b> - <a href="">2014-05-16</a>
        
      </li>
      <li>
        <b>0.8.0</b> - <a href="">2014-04-29</a>
        
      </li>
      <li>
        <b>0.7.0</b> - <a href="">2014-04-07</a>
        
      </li>
      <li>
        <b>0.6.2</b> - <a href="">2014-03-31</a>
        
      </li>
      <li>
        <b>0.6.1</b> - <a href="">2014-03-30</a>
        
      </li>
      <li>
        <b>0.6.0</b> - <a href="">2014-03-30</a>
        
      </li>
      <li>
        <b>0.5.0</b> - <a href="">2014-03-30</a>
        
      </li>
      <li>
        <b>0.4.1</b> - <a href="">2014-03-30</a>
        
      </li>
      <li>
        <b>0.4.0</b> - <a href="">2014-03-28</a>
        
      </li>
      <li>
        <b>0.3.0</b> - <a href="">2014-03-28</a>
        
      </li>
      <li>
        <b>0.2.10</b> - <a href="">2014-01-23</a>
        
      </li>
      <li>
        <b>0.2.9</b> - <a href="">2013-05-28</a>
        
      </li>
      <li>
        <b>0.2.8</b> - <a href="">2013-05-01</a>
        
      </li>
      <li>
        <b>0.2.7</b> - <a href="">2013-04-09</a>
        
      </li>
      <li>
        <b>0.2.6</b> - <a href="">2013-03-03</a>
        
      </li>
    </ul>
    

  from [`async` GitHub Release Notes](https://github.com/caolan/async/releases)

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