fix(gnome): add --break-system-packages for Ubuntu PEP 668 compliance

Ubuntu 24.04+ has PEP 668 protection that prevents pip from
installing to system Python. Add the flag conditionally for Ubuntu
only (Fedora doesn't need it).

Author: Derek

ansible/roles/dfe_developer/tasks/gnome_common.yml

@@ -50,18 +50,21 @@
 
 # Distro-packaged pipx can be outdated (Ubuntu 24.04 has 1.4.3).
 # community.general.pipx requires >= 1.7.0 for application parameter.
-# Upgrade pip and pipx system-wide - overwrites older distro versions in-place
+# Upgrade pip and pipx system-wide - overwrites older distro versions in-place.
+# --break-system-packages required on Ubuntu 24.04+ (PEP 668 protection).
 - name: Upgrade pip to latest (system-wide)
   ansible.builtin.pip:
     name: pip
     state: latest
+    extra_args: "{{ '--break-system-packages' if ansible_facts['distribution'] == 'Ubuntu' else omit }}"
   become: true
   when: ansible_facts['distribution'] in ['Ubuntu', 'Fedora']
 
 - name: Upgrade pipx to latest (system-wide)
   ansible.builtin.pip:
     name: pipx
     state: latest
+    extra_args: "{{ '--break-system-packages' if ansible_facts['distribution'] == 'Ubuntu' else omit }}"
   become: true
   when: ansible_facts['distribution'] in ['Ubuntu', 'Fedora']