Fusioninventory-agent require perl-YAML-Tiny to be installable with EPEL-8 Can you build it ? cf ( https://bugzilla.redhat.com/show_bug.cgi?id=1789040 )
perl-YAML-Tiny-1.73-2.el8 is available in the Code Ready Builder (RHEL) / PowerTools (CentOS) repository for EL-8. Packages from EPEL8 often include dependencies from there so you need to enable one of those repositories. See: https://fedoraproject.org/wiki/EPEL#How_can_I_use_these_extra_packages.3F