project: fix arithmetic outside of jinja (#10106)

This feature no longer works on Ansible 6 / ansible-core 2.13. We do not
support these version officially yet but this will help for the future
upgrade and may help some people running those inadvertently.

Signed-off-by: Arthur Outhenin-Chalandre <arthur.outhenin-chalandre@proton.ch>

contrib/dind/roles/dind-cluster/tasks/main.yaml

@@ -43,7 +43,7 @@
   package:
     name: "{{ item }}"
     state: present
-  with_items: "{{ distro_extra_packages }} + [ 'rsyslog', 'openssh-server' ]"
+  with_items: "{{ distro_extra_packages + [ 'rsyslog', 'openssh-server' ] }}"
 
 - name: Start needed services
   service:

tests/cloud_playbooks/roles/packet-ci/tasks/create-vms.yml

@@ -12,7 +12,7 @@
 
 - name: Template vm files for CI job
   set_fact:
-    vms_files: "{{ vms_files }} + [{{ lookup('ansible.builtin.template', 'vm.yml.j2') | from_yaml }}]"
+    vms_files: "{{ vms_files + [lookup('ansible.builtin.template', 'vm.yml.j2') | from_yaml] }}"
   vars:
     vms_files: []
   loop: "{{ range(1, vm_count|int + 1, 1) | list }}"