fix(cosign): publish all multi-arch attachments

mentioned in commit b632a076

mentioned in merge request Orange-OpenSource/lfn/ci_cd/chained-ci-client-launcher!281 (merged)

mentioned in merge request Orange-OpenSource/lfn/ci_cd/chained-ci-py!453 (merged)

mentioned in merge request Orange-OpenSource/lfn/ci_cd/docker-ansible-core!293 (merged)

mentioned in merge request Orange-OpenSource/k8s-tz/tools/template-template!255 (merged)

mentioned in merge request Orange-OpenSource/lfn/infra/infra_collection!245 (merged)

mentioned in merge request Orange-OpenSource/lfn/infra/kubernetes_collection!308 (merged)

mentioned in merge request Orange-OpenSource/lfn/infra/os_infra_manager_docker!378 (merged)

mentioned in merge request Orange-OpenSource/lfn/infra/rke2_automatic_installation_collection!327 (merged)

mentioned in merge request hobyte/kube-cli!34

mentioned in merge request to-be-contained/images!49 (closed)

mentioned in merge request vriska/searchdown!50

mentioned in merge request to-be-continuous/samples/node-on-openshift!41

mentioned in merge request to-be-continuous/samples/python-docker-compose!28

mentioned in merge request to-be-continuous/samples/python-helmfile-on-kubernetes!99

mentioned in merge request to-be-continuous/samples/python-on-kubernetes!88

mentioned in merge request to-be-continuous/samples/freepascal-make-helm!59

mentioned in merge request to-be-continuous/samples/golang-docker-on-aws!138

mentioned in merge request to-be-continuous/samples/maven-on-kubernetes!156

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