Avoid installing missing packages for version 23

On ubuntu bionic and focal (and debian buster too), the docker-model-plugin
package is missing. The suggestion was to just install the package named
docker-buildx-plugin in the version 23 check, while moving the missing
package docker-model-plugin to a new version 28.2 check. The number was
chosen because that package becomes available starting with version 28.2
on ubuntu jammy (while not available in version 28.1 on ubuntu focal).

See: #509

Signed-off-by: Rejean Groleau <rejeangroleau@gmail.com>

Author: rejeangroleau

install.sh

@@ -554,7 +554,10 @@ do_install() {
 						pkgs="$pkgs docker-compose-plugin docker-ce-rootless-extras$pkg_version"
 				fi
 				if version_gte "23.0"; then
-						pkgs="$pkgs docker-buildx-plugin docker-model-plugin"
+						pkgs="$pkgs docker-buildx-plugin"
+				fi
+				if version_gte "28.2"; then
+						pkgs="$pkgs docker-model-plugin"
 				fi
 				if ! is_dry_run; then
 					set -x