System unable to boot post leapp upgrade from RHEL8 to RHEL 9 failing with `Failed to start Load Kernel Modules`

Issue

• After leapp upgrade from RHEL8 to RHEL9, system did not boot and was stuck at stage

  [FAILED] Failed to start Load Kernel Modules.
  See 'systemctl status systemd-modules-load.service' for details. 
  [FAILED] Failed to start Rule-based Manager for Device Events and Files.
  See 'systemctl status systemd-udevd.service' for details. 
  A start job for /dev/disk/by-uuid/69d8a426-8782-47cb-a14e-12446ab4a4d3 (3min 5s / no limit)
  

• Unable to boot and everytime system gets stuck at either /dev/disk/by-uuid/ or Rule-based Manager service job running.

  A start job for Rule-based Manager for Device Events and Files (3min 5s / no limit)
  and
  A start job for /dev/disk/by-uuid/69d8a426-8782-47cb-a14e-12446ab4a4d3 (3min 10s / no limit)
  

• Entries in /etc/nsswitch.conf caused system boot failure.

  # cat /etc/nsswitch.conf 
  passwd:     sss files systemd cyberark
  group:      cyberark sss files systemd
  initgroups: cyberark files