Bug 1841: LTS Support Helm

Upgrading k8s version to 1.23, juju version to 2.9.22:,
kubectl version to 1.23, helm version to 3.7.2.

Change-Id: I651e246f5b72707bcb99cc6fff4f1b418fcd826c
Signed-off-by: aticig <gulsum.atici@canonical.com>
diff --git a/installers/full_install_osm.sh b/installers/full_install_osm.sh
index 3447de1..093f341 100755
--- a/installers/full_install_osm.sh
+++ b/installers/full_install_osm.sh
@@ -859,7 +859,7 @@
 
 LXD_VERSION=4.0
 JUJU_VERSION=2.9
-JUJU_AGENT_VERSION=2.9.17
+JUJU_AGENT_VERSION=2.9.22
 UNINSTALL=""
 DEVELOP=""
 UPDATE=""