pg_dump: avoid useless query in binary_upgrade_set_type_oids_by_type_oid

Commit 6df7a969 wrote appendPQExpBuffer where it should have
written printfPQExpBuffer.  This resulted in re-issuing the
previous query along with the desired one, which very accidentally
had no negative consequences except for some wasted cycles.

Back-patch to v14 where that came in.

Discussion: https://postgr.es/m/1714711.1642962663@sss.pgh.pa.us

src/bin/pg_dump/pg_dump.c

@@ -4652,7 +4652,7 @@ binary_upgrade_set_type_oids_by_type_oid(Archive *fout,
 	{
 		if (fout->remoteVersion >= 140000)
 		{
-			appendPQExpBuffer(upgrade_query,
+			printfPQExpBuffer(upgrade_query,
 							  "SELECT t.oid, t.typarray "
 							  "FROM pg_catalog.pg_type t "
 							  "JOIN pg_catalog.pg_range r "