Change compute reference to login

Because compute and login nodes are basically the same except login node does not need slurmd and we don't use compute image anywhere. So use it to build login image and change its references in CI script

ansible/roles/rewrite_map/tasks/main.yaml

@@ -7,7 +7,7 @@
     group: root
     dest: /var/www/rewrite_map_config.py
 
-- name: Replace OOD rewrite placeholder in Apache configuration
+- name: Replace OOD rewrite condition regex in Apache configuration
   ansible.builtin.replace:
     path: /etc/httpd/conf.d/front-end.conf
     regexp: "RewriteCond %{HTTP:REMOTE_USER} '\\^\\(\\.\\+\\)\\$'"