ansible: Update cmake from backports.

ansible/pontos.yml

@@ -8,6 +8,7 @@
     llvm16_state: present
     llvm17_state: absent
     gh_cli_state: present
+    backports_cmake: true
     postgres_client: true
     nftables:
       pds_local: true

ansible/roles/common_deb/defaults/main.yml

@@ -3,6 +3,7 @@ mail_relay: relay.fi.muni.cz
 postfix: true
 pam_use_kerberos: True
 backports_git: False
+backports_cmake: False
 backports: False
 nftables_default_config: True
 nftables:

ansible/roles/common_deb/tasks/main.yml

 - fail:
     msg: possibly wrong server?
   when: ansible_distribution != 'Debian'
-  
+
 - name: set hostname
   hostname:
     name: "{{inventory_hostname}}"
@@ -300,7 +300,7 @@
         APT::Periodic::Update-Package-Lists "1";
         APT::Periodic::Unattended-Upgrade "1";
     dest: /etc/apt/apt.conf.d/20auto-upgrades
-  
+
 - name: setup root profile
   copy:
     src: "{{item.src}}"
@@ -320,7 +320,7 @@
     repo: deb http://deb.debian.org/debian bullseye-backports main
     filename: backports
     state: present
-  when: backports or backports_git
+  when: backports or backports_git or backports_cmake
 
 - name: Update git from backports
   apt:
@@ -329,6 +329,13 @@
       - git
     state: latest
 
+- name: Update cmake from backports
+  apt:
+    default_release: '{{"bullseye-backports" if backports_cmake else "bullseye"}}'
+    pkg:
+      - cmake
+    state: latest
+
 - name: Benchmarking
   apt:
     pkg: