fix bitwarden macos cask

tasks/config/bitwarden.yml

@@ -1,10 +1,19 @@
 # vim: set filetype=yaml.ansible :
 ---
-- name: Set bitwarden install method
+- name: Set bitwarden install method for Linux
+  when:
+    - ansible_system == 'Linux'
   ansible.builtin.set_fact:
     bitwarden:
       method: "{{ pkgconfig.bitwarden.method[ansible_distribution] | default('flatpak') }}"
 
+- name: Set bitwarden install method for MacOSX
+  when:
+    - ansible_distribution == 'MacOSX'
+  ansible.builtin.set_fact:
+    bitwarden:
+      method: cask
+
 - name: Set bitwarden config
   when:
     - bitwarden.method == 'sys' or