style: incorporate linter recommendations

.gitlab-ci.yml

ansible.cfg

handlers/main.yml

meta/main.yml

molecule/resources/playbooks/converge.yml

molecule/virtualbox_centos7/molecule.yml

molecule/virtualbox_debian10/molecule.yml

molecule/virtualbox_debian11/molecule.yml

molecule/virtualbox_rocky8/molecule.yml

tasks/configure_autoupdate.yml

tasks/configure_bash.yml

tasks/configure_ntp.yml

tasks/configure_root_shell.yml

tasks/configure_ssh_login.yml

tasks/configure_sudoers.yml

tasks/configure_tmux.yml

tasks/configure_vim.yml

tasks/create_users_groups.yml

tasks/install_checkmk_plugins.yml

tasks/install_lzip_tools.yml