chore: update sponsors

Author: github-actions[bot]

README.md

@@ -153,7 +153,7 @@ All of our software is free an open to the world. None of this can be brought to
 <!-- bronze -->No bronze sponsors yet. <a href="https://github.com/sponsors/serversideup">Become a sponsor →</a><!-- bronze -->
 
 #### Individual Supporters
-<!-- supporters --><a href="https://github.com/sevalla-hosting"><img src="https://github.com/sevalla-hosting.png" width="40px" alt="sevalla-hosting" /></a>&nbsp;&nbsp;<a href="https://github.com/aagjalpankaj"><img src="https://github.com/aagjalpankaj.png" width="40px" alt="aagjalpankaj" /></a>&nbsp;&nbsp;<!-- supporters -->
+<!-- supporters --><a href="https://github.com/sevalla-hosting"><img src="https://github.com/sevalla-hosting.png" width="40px" alt="sevalla-hosting" /></a>&nbsp;&nbsp;<a href="https://github.com/aagjalpankaj"><img src="https://github.com/aagjalpankaj.png" width="40px" alt="aagjalpankaj" /></a>&nbsp;&nbsp;<a href="https://github.com/RubenSteen"><img src="https://github.com/RubenSteen.png" width="40px" alt="RubenSteen" /></a>&nbsp;&nbsp;<!-- supporters -->
 
 ## About Us
 We're [Dan](https://twitter.com/danpastori) and [Jay](https://twitter.com/jaydrogers) - a two person team with a passion for open source products. We created [Server Side Up](https://serversideup.net) to help share what we learn.