refactor: install ansible with Python venv (#863)

bootstrap/tasks/validation/age.yaml

@@ -1,18 +1,18 @@
 ---
 - name: Query age key file
   ansible.builtin.stat:
-    path: ~/.config/sops/age/keys.txt
+    path: "{{ repository_path }}/age.key"
   register: result
 
 - name: Check if age key file exists
   ansible.builtin.assert:
     that: result.stat.exists
-    success_msg: Age file ~/.config/sops/age/keys.txt exists
-    fail_msg: Age file ~/.config/sops/age/keys.txt does not exist
+    success_msg: Age file {{ repository_path }}/age.key exists
+    fail_msg: Age file {{ repository_path }}/age.key does not exist
 
 - name: Query age key file contents
   ansible.builtin.set_fact:
-    age_contents: "{{ lookup('file', '~/.config/sops/age/keys.txt') }}"
+    age_contents: "{{ lookup('file', repository_path + '/age.key') }}"
 
 - name: Check if age public keys match
   ansible.builtin.assert: