Merge branch 'master' of https://git.slub-dresden.de/digital-preservation/ansible_lza_server_hardening

fix: set empty CRYPTO_POLICY for sshd to make sure that SSH on RHEL respects the custom settings in sshd_config

Merge branch 'master' of https://git.slub-dresden.de/digital-preservation/ansible_lza_server_hardening

feat: resolves GitLab issue 2368 (https://git.slub-dresden.de/import-jira-projekte/referat_2.3/-/issues/2368) by making sure that all ClamAV components are uninstalled

fix: improve task waiting for ClamAV signature databases to be downloaded by being more precise about DB names and extending timeout for slow connections

fix: remove EPEL installation task; we expect EPEL to be enabled on production machines already, and Molecule enables EPEL during the prepare phase

fix: undo changes done with the systemd override for rpcbind.socket, because the 'ListenStream=' and 'ListenDatagram=' don't work like I thought and are useless for what we're trying to accomplish

feat: prepare tasks for NFSv3 rpcbind risk mitigations. CAUTION: as we're lacking NetApp interface info, this code is not yet tested!