Merge pull request #1961 from arno-pons/fix/ubuntu-24-aptconf

fix: use ubuntu repo vars in apt config for ubuntu 24 instead of hard…

Author: k8s-ci-robot

images/capi/ansible/roles/setup/templates/etc/apt/sources.list.d/ubuntu.sources.j2

@@ -1,11 +1,11 @@
 Types: deb
-URIs: http://us.archive.ubuntu.com/ubuntu/
+URIs: {{ ubuntu_repo }}
 Suites: {{ ansible_distribution_release }} {{ ansible_distribution_release }}-updates {{ ansible_distribution_release }}-backports
 Components: main restricted universe multiverse
 Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
 
 Types: deb
-URIs: http://security.ubuntu.com/ubuntu/
+URIs: {{ ubuntu_security_repo }}
 Suites: {{ ansible_distribution_release }}-security
 Components: main restricted universe multiverse
 Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg