doc PG 17 relnotes: fix system catalog name mistake

Reported-by: David G. Johnston

Discussion: https://postgr.es/m/CAKFQuwYgkaOuao4DXuQwhbg+vyu4Xb5TGpuDNDOfMa0AftyweQ@mail.gmail.com

Backpatch-through: master

Author: bmomjian

Diff for: doc/src/sgml/release-17.sgml

@@ -285,7 +285,7 @@ Author: Jeff Davis <[email protected]>
      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>
+     <link linkend="catalog-pg-database"><structname>pg_database</structname>.<structfield>daticulocale</structfield></link>
      to <structfield>datlocale</structfield> (Jeff Davis)
      </para>
     </listitem>