Fix #12675: Upgrade failure due to missing database name in Connect call

PostgreSQL upgrades were failing with the following error message:

"Attempting to connect to database as admin BAD"

This was due to a Connect() call missing an explicit definition of the
database name.

Signed-off-by: David Hicks <d@hx.id.au>

admin/install.php

@@ -573,7 +573,7 @@ function InsertData( $p_table, $p_data ) {
 		} else {
 			// create db
 			$g_db = ADONewConnection( $f_db_type );
-			$t_result = $g_db->Connect( $f_hostname, $f_admin_username, $f_admin_password );
+			$t_result = $g_db->Connect( $f_hostname, $f_admin_username, $f_admin_password, $f_database_name );
 
 			$dict = NewDataDictionary( $g_db );