controller node upgrade is failing with error `Package marked by Leapp to install not found in repositories metadata `

Issue

Leapp upgrade was failing on controller node with below error while performing FFU from RHOSP 16.2 to 17.1

"============================================================", "", "2023-10-23 10:15:54.062231 [ERROR] Actor: dnf_transaction_check", "Message: DNF execution failed with non zero exit code.", "STDOUT:", "Last metadata expiration check: 0:02:47 ago on Mon Oct 23 10:12:42 2023.", "Package python3-iso8601-0.1.12-8.el8ost.1.noarch is already installed.", "Package python3-pyOpenSSL-19.0.0-1.el8.noarch is already installed.", "Package container-selinux-2:2.167.0-1.module+el8.4.0+14908+81312c48.noarch is already installed.", "Package os-net-config-14.2.1-1.20230412014753.el8ost.noarch is already installed.", "", "STDERR:", "warning: Found bdb_ro Packages database while attempting sqlite backend: using bdb_ro backend.", "warning: Found bdb_ro Packages database while attempting sqlite backend: using bdb_ro backend.", "Warning: Package marked by Leapp to install not found in repositories metadata: ovn2.15 openvswitch2.15", "Warning: Package marked by Leapp to upgrade not found in repositories metadata: leapp-upgrade-el8toel9 leapp gpg-pubkey python3-leapp", "Transaction check: ", "", " Problem 1: conflicting requests", " Problem 2: package os-net-config-14.2.1-1.20230412014753.el8ost.noarch requires python3.6dist(setuptools), but none of the providers can be installed", "  - conflicting requests", "", "", "============================================================", "                       END OF ERRORS                        ", "============================================================", "", "", "Debug output written to /var/log/leapp/leapp-upgrade.log", "", "============================================================", "                           REPORT                           ", "============================================================", "",