VMs: replace old ansible-pull URL

Leftover ansible-pull url for cloud-init was wrong.

roles/virtual-machines/templates/cloud-init-user-data

@@ -12,7 +12,7 @@ packages:
   - ansible
   - git
 runcmd:
-  - ansible-pull -U "https://pep-security.lu/gitlab/cid/infrastructure/ansible-basic.git"
+  - ansible-pull -U "https://gitea.pep.foundation/dvn/ansible-basic.git"
   - bash -x /usr/sbin/run-ansible-pull nodisown
 power_state:
   mode: reboot