Add gpg_auth to FreeBSD.

ansible/roles/ssh_client/tasks/freebsd.yaml

@@ -0,0 +1,16 @@
+- name: Install packages
+  package:
+    name:
+      - libfido2 # u2f support for ssh
+    state: present
+
+- name: Install scripts
+  copy:
+    src: "files/{{ item.src }}"
+    dest: "{{ item.dest }}"
+    mode: 0755
+    owner: root
+    group: wheel
+  loop:
+    - src: gpg_auth
+      dest: /usr/local/bin/gpg_auth