Use Discord canary deb instead of Flatpak

roles/discord-canary/tasks/main.yml

@@ -0,0 +1,36 @@
+- name: Install pkexec
+  become: yes
+  apt:
+    state: latest
+    install_recommends: false
+    name: pkexec
+
+- name: Copy update helper
+  copy:
+    src: "{{ role_path }}/files/update-discord"
+    dest: "{{ ansible_env.HOME }}/.local/bin/"
+
+- name: Make update helper executable
+  ansible.builtin.file:
+    dest: "{{ ansible_env.HOME }}/.local/bin/update-discord"
+    mode: "ug+x"
+
+- name: Download Discord canary using helper
+  ansible.builtin.command:
+    cmd: "update-discord --download-only"
+    chdir: "{{ ansible_env.HOME }}/.local/bin"
+  register: helper_result
+  failed_when: ( helper_result.rc not in [ 0, 2 ] )
+
+- name: Install Discord canary
+  become: yes
+  apt:
+    deb: /tmp/discord-canary.deb
+    install_recommends: false
+  when: helper_result.rc != 2
+
+- name: Remove installation package
+  ansible.builtin.file:
+    state: absent
+    path: /tmp/discord-canary.deb
+  when: helper_result.rc != 2