Stabilize twoliter CLI, deprecate twoliter make

[cbgbt]

Twoliter has stabilized its core build functionality behind a CLI that should treat as semantically stable (twoliter build, twoliter update, twoliter publish, twoliter fetch).

On the other hand, many build system features still lean on the legacy "cargo-make" interface exposed via twoliter make.

This issue is meant to track the stabilization of these commands behind CLI interfaces. Eventually, we should drop twoliter make after we feel that the relevant behaviors are properly exposed.

To get a sense of which interfaces should be considered for extraction, you can look at the Makefile in bottlerocket-os/bottlerocket. Any task of the following form will need attention:

[tasks.TASK_NAME]
run_task = "run-twoliter"