Stop using apt_key: module to install keyrings

Fixes #16 by replacing uses of the `apt_key:` module with `get_url:` to
download apt keyrings into `/etc/apt/keyrings`, then used
`signed-by=/etc/path/keyrings/<keyring>` in the appropriate sources.list
file.

roles/1password/tasks/Debian.yaml

@@ -1,16 +1,23 @@
 ---
-- set_fact:
-    keyring: /etc/apt/trusted.gpg.d/1password-archive-keyring.gpg
+- name: set keyring path
+  set_fact:
+    keyring: /etc/apt/keyrings/1password.asc
+    old_keyring: /etc/apt/trusted.gpg.d/1password-archive-keyring.gpg
+
+- name: remove old keyring
+  file:
+    path: '{{old_keyring}}'
+    state: absent
 
 - name: add apt signing key
   when: '"WSL" not in ansible_kernel'
   become: true
-  apt_key:
+  get_url:
     url: https://downloads.1password.com/linux/keys/1password.asc
-    keyring: '{{keyring}}'
-    state: present
+    dest: '{{keyring}}'
 
-- when: ansible_machine == 'x86_64'
+- name: set compatible architecture
+  when: ansible_machine == 'x86_64'
   set_fact:
     arch: amd64