[BUG] Many objects are deployed in default namespace

[collivier]

Describe the bug

They are many KubectlClient::Apply.file which should have been changed when switching to cnf-default
See #2056 et al.

That forbids enforcing Pod Security Standard restricted #2021
(please note a few are fixed in this ongoing PR)

To Reproduce

$ grep -r KubectlClient::Apply |grep -v namespace
tasks/platform/resilience.cr:      KubectlClient::Apply.file("reboot_daemon_pod.yml")
tasks/opa_setup.cr:  KubectlClient::Apply.file("constraint_template.yml")
tasks/opa_setup.cr:  KubectlClient::Apply.file("enforce-image-tag.yml")
tasks/utils/cnf_manager.cr:        KubectlClient::Apply.file("#{destination_cnf_dir}/#{manifest_directory}")
tasks/utils/cnf_manager.cr:    KubectlClient::Apply.file(configmap_path)
tasks/utils/cnf_manager.cr:      KubectlClient::Apply.file("#{destination_cnf_dir}/#{manifest_directory}", kubeconfig: kubeconfig)
tasks/utils/mysql.cr:    KubectlClient::Apply.file("https://raw.githubusercontent.com/mysql/mysql-operator/trunk/samples/sample-cluster.yaml")
tasks/chaos_mesh_setup.cr:  # KubectlClient::Apply.file("https://raw.githubusercontent.com/chaos-mesh/chaos-mesh/#{CHAOS_MESH_VERSION}/manifests/crd.yaml")
tasks/workload/reliability.cr:        KubectlClient::Apply.file(rbac_path)
tasks/workload/reliability.cr:        KubectlClient::Apply.file("#{destination_cnf_dir}/#{chaos_experiment_name}-chaosengine.yml")
tasks/workload/reliability.cr:        KubectlClient::Apply.file(rbac_path)
tasks/workload/reliability.cr:        KubectlClient::Apply.file("#{destination_cnf_dir}/#{chaos_experiment_name}-chaosengine.yml")
tasks/workload/reliability.cr:        KubectlClient::Apply.file(rbac_path)
tasks/workload/reliability.cr:        KubectlClient::Apply.file("#{destination_cnf_dir}/#{chaos_experiment_name}-chaosengine.yml")
tasks/workload/reliability.cr:        KubectlClient::Apply.file(rbac_path)
tasks/workload/reliability.cr:        KubectlClient::Apply.file("#{destination_cnf_dir}/#{chaos_experiment_name}-chaosengine.yml")
tasks/workload/reliability.cr:        KubectlClient::Apply.file(rbac_path)
tasks/workload/reliability.cr:        KubectlClient::Apply.file("#{destination_cnf_dir}/#{chaos_experiment_name}-chaosengine.yml")
tasks/workload/reliability.cr:        KubectlClient::Apply.file(rbac_path)
tasks/workload/reliability.cr:        KubectlClient::Apply.file("#{destination_cnf_dir}/#{chaos_experiment_name}-chaosengine.yml")
tasks/workload/reliability.cr:        KubectlClient::Apply.file(rbac_path)
tasks/workload/reliability.cr:        KubectlClient::Apply.file("#{destination_cnf_dir}/#{chaos_experiment_name}-chaosengine.yml")
tasks/workload/reliability.cr:          KubectlClient::Apply.file(rbac_path)
tasks/workload/reliability.cr:          KubectlClient::Apply.file("#{destination_cnf_dir}/#{chaos_experiment_name}-chaosengine.yml")
tasks/workload/configuration.cr:    KubectlClient::Apply.file(test_config_map_filename)
tasks/workload/configuration.cr:    # if KubectlClient::Apply.file(test_config_map_filename) == 0
tasks/workload/configuration.cr:    apply_result = KubectlClient::Apply.file(test_config_map_filename)
tasks/workload/state.cr:            KubectlClient::Apply.file("#{LitmusManager::MODIFIED_LITMUS_FILE}")
tasks/workload/state.cr:          KubectlClient::Apply.file(rbac_path)
tasks/workload/state.cr:          KubectlClient::Apply.file("#{destination_cnf_dir}/#{chaos_experiment_name}-chaosengine.yml")
tasks/workload/observability.cr:                KubectlClient::Apply.file(configmap_path)
tasks/litmus_setup.cr:  KubectlClient::Apply.file(LitmusManager::LITMUS_OPERATOR)