Update release date

Author: lenemter

data/gala.metainfo.xml.in

@@ -27,7 +27,7 @@
   <update_contact>contact_at_elementary.io</update_contact>
 
   <releases>
-      <release version="8.1.0" date="2025-01-05" urgency="medium">
+      <release version="8.1.0" date="2025-01-11" urgency="medium">
       <description>
         <p>Improvements:</p>
         <ul>