refactor(backend): switch to empty buildpack for package, extend supported OS versions (#10705) (#10712)

* bump vers

* fix ssl?

Added build dependencies for libbz2, libffi, and libssl.

* try empty buildpack

* clean up

* fix ref

* remove things we now do not need anymore

* add 22.04 as a target

* cleanup installer

* add changelog entry

* add dotenv

* update skript

* make task more robust for package usage

* ensure we have a site-url set

* fix style

* fix syntax

(cherry picked from commit f47a1a4675)

contrib/packager.io/postinstall.sh

@@ -33,10 +33,10 @@ export SETUP_ADMIN_NOCREATION=${SETUP_ADMIN_NOCREATION:-false}
 # SETUP_PYTHON can be set to use a different python version
 
 # get base info
+detect_ip
 detect_envs
 detect_docker
 detect_initcmd
-detect_ip
 detect_python
 
 # Check if we are updating and need to alert