fix ansible-lint errors

roles/borg_server/molecule/default/converge.yml

@@ -2,6 +2,6 @@
 - name: Converge
   hosts: all
   roles:
-    - role: genlab.common.ansible_borg_server
+    - role: genlab.common.borg_server
       borg_secrets_path: "secrets.yaml"
-      hide_logs: false
+      borg_server_hide_logs: false

roles/borg_server/molecule/default/verify.yml

@@ -6,6 +6,6 @@
 
   tasks:
     - name: "Check if `borg` is available from PATH"  # noqa: no-changed-when
-      register: br_test__borg_version
+      register: borg_server_version
       ansible.builtin.command:
         cmd: "borg --version"