chore: update changelog

Author: mirkobrombin

data/com.usebottles.bottles.metainfo.xml.in

@@ -69,6 +69,7 @@
   <releases>
     <release version="51.12" date="2024-07-09">
       <description translatable="no">
+        <p>Support d3d8 vya dxvk</p>
         <p>Removed @lru_cache decorator from the Paths class, plus minor typing fixes</p>
         <p>Fixed crash on startup [#3329]</p>
         <p>Updated GNOME runtime in manifest</p>