fix: remove nested variable in rules:if

mentioned in commit 01e241cc

mentioned in merge request Orange-OpenSource/lfn/ci_cd/chained-ci-client-launcher!288

mentioned in merge request Orange-OpenSource/lfn/ci_cd/chained-ci-py!464

mentioned in merge request Orange-OpenSource/lfn/ci_cd/docker-ansible-core!307

mentioned in merge request Orange-OpenSource/lfn/infra/infra_collection!259

mentioned in merge request Orange-OpenSource/lfn/infra/kubernetes_collection!331

mentioned in merge request Orange-OpenSource/lfn/infra/os_infra_manager_docker!384

mentioned in merge request Orange-OpenSource/lfn/infra/rke2_automatic_installation_collection!350

mentioned in merge request to-be-contained/images!82

mentioned in merge request arachnidsGrip/searchdown!69

mentioned in merge request hobyte/kube-cli!36

mentioned in merge request Orange-OpenSource/k8s-tz/tools/template-template!273 (merged)

mentioned in merge request to-be-continuous/tools/gitlab-ci-test!8