UNCLASSIFIED - NO CUI
Currently supported Big Bang Version is 2.51
Switches default AMI to Ubuntu Jammy. This gets us to a newer version of Ubuntu (with no extra cost) and enables cgroupv2 by default, which neuvector on k3d seems to require.
From brief testing all of the existing commands work as-is on Jammy.
Part of changes related to https://repo1.dso.mil/platform-one/big-bang/apps/sandbox/neuvector/-/issues/28
