Revert "Use Juju 2.9.12"

This reverts commit f5051cb9a979b5e5478534f03bab3444fe800b45.

Reason for revert: 

Juju 2.9.12 has bugs that require us to stick with original until they are fixed.

Change-Id: I4f5b7af7278b67c39c9e236fa67e051eccf295e7
Signed-off-by: beierlm <mark.beierl@canonical.com>
diff --git a/installers/charmed_install.sh b/installers/charmed_install.sh
index 2406b6a..06361c8 100755
--- a/installers/charmed_install.sh
+++ b/installers/charmed_install.sh
@@ -17,7 +17,7 @@
 
 LXD_VERSION=4.17
 JUJU_VERSION=2.9
-JUJU_AGENT_VERSION=2.9.12
+JUJU_AGENT_VERSION=2.9.9
 K8S_CLOUD_NAME="k8s-cloud"
 KUBECTL="microk8s.kubectl"
 MICROK8S_VERSION=1.20
diff --git a/installers/full_install_osm.sh b/installers/full_install_osm.sh
index 21bf1ca..517a38e 100755
--- a/installers/full_install_osm.sh
+++ b/installers/full_install_osm.sh
@@ -1523,7 +1523,7 @@
 
 LXD_VERSION=4.17
 JUJU_VERSION=2.9
-JUJU_AGENT_VERSION=2.9.12
+JUJU_AGENT_VERSION=2.9.9
 UNINSTALL=""
 DEVELOP=""
 UPDATE=""