Update installer.metainfo.xml.in

Author: danirabbit

data/installer.metainfo.xml.in

@@ -56,7 +56,7 @@
   <update_contact>contact_at_elementary.io</update_contact>
 
   <releases>
-    <release version="8.1.2" date="2027-07-31" urgency="medium">
+    <release version="8.1.2" date="2025-08-14" urgency="medium">
       <description>
         <p>Improvements:</p>
         <ul>