add required variables to verify

roles/atuin_server/molecule/default/verify.yml

@@ -5,6 +5,8 @@
   # commands. Most molecule users are expected to use containers that already
   # have python installed in order to avoid notable delays installing it.
   gather_facts: false
+  vars:
+    atuin_server_home: /home/atuin
 
   tasks:
     - name: Check if atuin server config exists