[release]: Update Flatpak manifest

Author: mr-cheffy

app.zen_browser.zen.metainfo.xml

@@ -59,7 +59,7 @@
     <control>keyboard</control>
   </supports>
   <releases>
-    <release version="1.14.10b" date="2025-08-04T14:05:02.732Z">
+    <release version="1.14.10b" date="2025-08-06T15:50:16.233Z">
       <url type="details">https://zen-browser.app/release-notes/1.14.10b</url>
     </release>
     <release version="1.14.9b" date="2025-07-27T13:01:42.314Z">