Leapp upgrade utility fails on Red Hat Satellite 6.11 with error Insufficient memory for tuning size

Issue

• Running leapp upgrade utility on Red Hat Satellite 6.11 to upgrade Operating System from RHEL 7 to RHEL 8 fails due to insufficient resources with below error:

  2022-04-01 16:27:54.490 DEBUG    PID: 1632 leapp.workflow.FirstBoot.satellite_upgrader: Insufficient memory for tuning size
  2022-04-01 16:27:54.493 DEBUG    PID: 1632 leapp.workflow.FirstBoot.satellite_upgrader: Tuning profile 'default' requires at least 8 GB of memory and 1 CPU cores
  2022-04-01 16:27:54.494 DEBUG    PID: 1632 leapp.workflow.FirstBoot.satellite_upgrader: Command ['foreman-installer'] failed with exit code 103.
  2022-04-01 16:27:54.496 DEBUG    PID: 1632 leapp.workflow.FirstBoot.satellite_upgrader: External command has finished: ['foreman-installer']
  2022-04-01 16:27:54.497 ERROR    PID: 1632 leapp.workflow.FirstBoot.satellite_upgrader: Could not run the installer, please inspect the logs in /var/log/foreman-installer!