SG Government has announced to change the GST-rate on 01 Jan 2024 MN from 8% to 9% Changes: - Added new taxes (8% -> 9%) - Added tax groups - Added migration script to l10n_sg to apply those changes task-3454556 closes odoo/odoo#145686 X-original-commit: 3d406214fb226ffe3aa222c422472bcc549a53cd Signed-off-by: Nicolas Viseur (vin) <vin@odoo.com>