schleuder_web: install uglifier gem for now

That's required to enable compilation of assets.

TODO: Drop this once fixed upstream.

tasks/schleuder_web.yml

@@ -146,6 +146,19 @@
     ansible_ssh_pipelining: True
   when: __schleuder_repo_clone.changed # noqa: no-handler
 
+  # TODO: drop once fixed upstream   
+- name: Install uglifier gem (when repo changed)
+  ansible.builtin.command: "/usr/local/bin/gem install --jobs {{ ansible_processor_cores }} uglifier"
+  changed_when: false
+  check_mode: no
+  args:
+    chdir: "{{ schleuder_schleuder_web_path }}"
+  become: true
+  become_user: "{{ schleuder_schleuder_web_user }}"
+  vars:
+    ansible_ssh_pipelining: True
+  when: __schleuder_repo_clone.changed and ansible_distribution_major_version|int >= 12 # noqa: no-handler
+
 - name: Check if schleuder-web systemd unit already exists
   ansible.builtin.stat:
     path: "{{ schleuder_schleuder_web_systemd_path }}"