title: How to increment and update column in one eloquent query
body: <p>Is it possible to update a timestamp (besides <code>updated_at</code>) and increment a column in one query? I obviously can</p>
  <pre class="lang-php prettyprint-override"><code>-&gt;increment('count')
  </code></pre>
  <p>and separately</p>
  <pre class="lang-php prettyprint-override"><code>-&gt;update(['last_count_increased_at' =&gt; Carbon::now()])
  </code></pre>
  <p>but is there an easy way to do both together.</p>
  <pre class="lang-php prettyprint-override"><code>Product::where('product_id', $product-&gt;id)
      -&gt;update(['count'=&gt; $count + 1, 'last_count_increased_at' =&gt; Carbon::now()];
  </code></pre>
  <p>Without having to query and get the count first?</p>