doc PG 17 relnotes: add item about pg_collation column renames

Reported-by: David G. Johnston

Discussion: https://postgr.es/m/CAKFQuwYRw30QaWrSsL57k3L_=zdQ4JTgY9pGnnhm42B7fGJX1A@mail.gmail.com

Backpatch-through: master

doc/src/sgml/release-17.sgml

@@ -275,6 +275,21 @@ Author: Peter Eisentraut <[email protected]>
      </para>
     </listitem>
 
+<!--
+Author: Jeff Davis <[email protected]>
+2024-03-09 [f696c0cd5] Catalog changes preparing for builtin collation provider
+-->
+
+    <listitem>
+     <para>
+     Rename <link
+     linkend="catalog-pg-collation"><structname>pg_collation</structname>.<structfield>colliculocale</structfield></link>
+     to <structfield>colllocale</structfield> and
+     <structname>pg_collation</structname>.<structfield>daticulocale</structfield>
+     to <structfield>datlocale</structfield> (Jeff Davis)
+     </para>
+    </listitem>
+
 <!--
 Author: Masahiko Sawada <[email protected]>
 2024-04-02 [667e65aac] Use TidStore for dead tuple TIDs storage during lazy vac