PG-1479,PG-1480: fix incorrect parameter order in default key rotation

The new and old principal keys were switched for the rotate function,
and as we do not have principal key validation for tdemap data, the
function doesn't notice this.

The problem also isn't visible until a server restart / new connection
because of internal key caching, which means the SQL tests also missed
to detect this.

contrib/pg_tde/src/catalog/tde_principal_key.c

@@ -1026,7 +1026,7 @@ pg_tde_rotate_default_key_for_database(TDEPrincipalKey *oldKey, TDEPrincipalKey
 	newKey->keyInfo.databaseId = oldKey->keyInfo.databaseId;
 
 	/* key rotation */
-	is_rotated = pg_tde_perform_rotate_key(newKey, oldKey);
+	is_rotated = pg_tde_perform_rotate_key(oldKey, newKey);
 
 	if (is_rotated && (!TDEisInGlobalSpace(newKey->keyInfo.databaseId)))
 	{