Added Amazon Linux 2 setup script. Also updated Ubuntu setup script to keep the scripts as aligned as possible.
Co-authored-by: cragwolfe <crag@unstructured.io>
When I took the changes to the Ubuntu setup script and propagated them to other scripts that run in slightly different contexts, the script failed at line 45 as DEBIAN_FRONTEND=noninteractive was interpreted as a command rather than a variable assignment.
Added the env command so there's no misinterpretation. Tested in docker as both root and user.
