use ansible_distribution insted of lsb infos, lsb is deprecated by debian since 2015

roles/debian-apt-sources/templates/apt/sources.list.j2

 {{ ansible_header | comment }}
 
-{% if ansible_lsb.id == "Debian" %}
-{% if ansible_lsb.codename != "bullseye" %}
+{% if ansible_distribution == "Debian" %}
+{% if ansible_distribution_release != "bullseye" %}
 {# Debian security does not exist yet for bullseye #}
 # Mises à jour de sécurité
-deb     {{ debian_mirror }}-security {{ ansible_lsb.codename }}/updates {{ debian_components }}
+deb     {{ debian_mirror }}-security {{ ansible_distribution_release }}/updates {{ debian_components }}
 
 {% endif %}
 # Dépôt classique
-deb     {{ debian_mirror }} {{ ansible_lsb.codename }} {{ debian_components }}
+deb     {{ debian_mirror }} {{ ansible_distribution_release }} {{ debian_components }}
 
 # Dépôt pour mises à jour fréquentes (volatile)
-deb     {{ debian_mirror }} {{ ansible_lsb.codename }}-updates {{ debian_components }}
-{% elif ansible_lsb.id == "Ubuntu" %}
+deb     {{ debian_mirror }} {{ ansible_distribution_release }}-updates {{ debian_components }}
+{% elif ansible_distribution == "Ubuntu" %}
 # Mises à jour de sécurité
-deb     {{ ubuntu_mirror }} {{ ansible_lsb.codename }}-security {{ ubuntu_components }}
+deb     {{ ubuntu_mirror }} {{ ansible_distribution_release }}-security {{ ubuntu_components }}
 
 # Dépôt classique
-deb     {{ ubuntu_mirror }} {{ ansible_lsb.codename }} {{ ubuntu_components }}
+deb     {{ ubuntu_mirror }} {{ ansible_distribution_release }} {{ ubuntu_components }}
 
 # Dépôt pour mises à jour fréquentes (volatile)
-deb     {{ ubuntu_mirror }} {{ ansible_lsb.codename }}-updates {{ ubuntu_components }}
+deb     {{ ubuntu_mirror }} {{ ansible_distribution_release }}-updates {{ ubuntu_components }}
 {% endif %}