title: Transform result of `st_bbox()` to other CRS
body: <p>Is there a simple way to transform the bounding of a simple feature (<code>sf</code> object) to another CRS?</p>
  
  <p>The result of the function <code>st_bbox()</code> is of class <code>bbox</code>. It is not possible to use <code>st_transform()</code> to transform it to another CRS. </p>
  
  <p>I am using a calculated bounding box based <code>EPSG: 28992</code>: </p>
  
  <pre><code>sf::st_bbox(xmin = 187470, xmax =194587, 
              ymin = 409753, ymax = 412715,  
              crs = st_crs(28992))
  </code></pre>
  
  <p>Now I want to transform this box to <code>EPSG:4326</code></p>