Release 4.0.0 (#1939)

Co-authored-by: Ryan Kornheisl <ryan@skarva.tech>

Author: danirabbit

data/io.elementary.appcenter.appdata.xml.in

@@ -12,7 +12,7 @@
   </description>
 
   <releases>
-    <release version="4.0.0" date="2022-10-05">
+    <release version="4.0.0" date="2022-10-06">
       <description>
         <p>New features:</p>
         <ul>