doc: PG 16 relnotes, mark current as of 2023-08-09

bmomjian · bmomjian · commit c8c033f721de · 2023-08-09T22:09:17.000-04:00
Backpatch-through: 16 only
diff --git a/doc/src/sgml/release-16.sgml b/doc/src/sgml/release-16.sgml
@@ -6,7 +6,7 @@
 
   <formalpara>
    <title>Release date:</title>
-   <para>AS OF 2023-06-26, 2023-??-??</para>
+   <para>AS OF 2023-08-09, 2023-??-??</para>
   </formalpara>
 
   <sect2 id="release-16-highlights">
