Default task limits should be based on memory and core count, not only core count

[AaronFriel]

Describe the bug

Wabbajack by default is using 112GiB of memory, or around 1.75GiB per logical CPU on this machine.

Additional Context

This computer has an AMD CPU with 64 logical cores. The default of using 64 tasks seems to result in fairly poor performance. Perhaps the default task limits should be determined by say, max(logical cores, gigabytes of RAM / 4)?

Wabbajack version is 3.7.2.1.

[github-actions]

Marked as stale due to no interactions in the last 90 days. If the issue still exists, please provide any possibly still needed information or excuse the devs for not getting around to addressing this issue yet. If this issue is still considered unsolved a dev will soon remove the stale tag from this issue.