CI: update gh sponsor list

Author: Ziggy

assets/github-sponsors-homepage.html

@@ -16,6 +16,5 @@
 <li>Ken Chilton</li>
 <li>Will Manning</li>
 <li>Spiral</li>
-<li>Alex Mackenzie at Tapestry VC</li>
 <li>Alok Parlikar</li>
 <li>Keygen</li>

assets/github-sponsors-release-notes.html

@@ -25,7 +25,6 @@
 <li><a href="https://www.chilton-consulting.com" rel="nofollow noopener" target="_blank" class="external-link">Ken Chilton</a></li>
 <li><a href="https://twitter.com/_willmanning" rel="nofollow noopener" target="_blank" class="external-link">Will Manning</a></li>
 <li><a href="https://spiraldb.com" rel="nofollow noopener" target="_blank" class="external-link">Spiral</a></li>
-<li><a href="https://mack.work" rel="nofollow noopener" target="_blank" class="external-link">Alex Mackenzie at Tapestry VC</a></li>
 <li><a href="https://github.com/slonik-az" rel="nofollow noopener" target="_blank" class="external-link">Leo Razoumov</a></li>
 <li><a href="http://www.parlikar.com" rel="nofollow noopener" target="_blank" class="external-link">Alok Parlikar</a></li>
 <li><a href="https://www.horster.org" rel="nofollow noopener" target="_blank" class="external-link">Viktor Tratsevskyy</a></li>