Merge branch 'fix-missing-ansible-vars' into 'main'

Add missing vars in group_vars

See merge request rc/packer-openstack-hpc-image!21

ansible/group_vars/all

 ---
   #This file path is relative to the ansible playbook.
   pkg_list_file: "cheaha-compute-yum-pkg-list.txt"
+
+  lmod_db_host_machine: "ohpc"
+  driver_run_file_link: "https://developer.download.nvidia.com/compute/cuda/11.8.0/local_installers/cuda_11.8.0_520.61.05_linux.run"