Language and Keyboard not set in anaconda and gdm us default is used

[filoucrackeur]

When i create an iso with an other language than us keyboard is not changed it keep always us language and keyboard in anaconda and gdm.

i run rhel 8.8 version my iso works but language and keyboard or not set
and us keyboard and language by default is used.

name = "SANDBOX"
description = "SANDBOX client iso installation"
modules = []
distro = "rhel-88"

[[groups]]
name = "workstation-product-environment"

[[packages]]
name = "httpd"
version = "*"

[customizations]
hostname = "client.sand.box"

[customizations.firewall.services]
enabled = ["vnc-server"]

[[customizations.user]]
name = "administrateur"
password = "***************"
groups = ["wheel"]

[[customizations.user]]
name = "root"
password = "***************"
description = "administrateur"
groups = ["wheel"]

[customizations.locale]
languages = ["fr_FR.UTF-8"]
keyboard = "fr"

[customizations.services]
enabled = ["gdm", "sssd", "chronyd", "oddjobd", "clamd@scan", "clamav-freshclam"]

[customizations.kernel]
append = "selinux=0 enforcing=0"

[customizations.timezone]
timezone = "Europe/Paris"