Fix bug 1770: pin osmclient to v11.0 track (charmed installer)

Change-Id: I4d14be3de36f6ca530ebcf561b5484641cc2b4e2
Signed-off-by: David Garcia <david.garcia@canonical.com>

installers/charmed_install.sh

@@ -21,7 +21,7 @@ JUJU_AGENT_VERSION=2.9.17
 K8S_CLOUD_NAME="k8s-cloud"
 KUBECTL="microk8s.kubectl"
 MICROK8S_VERSION=1.20
-OSMCLIENT_VERSION=10.0
+OSMCLIENT_VERSION=11.0
 IMAGES_OVERLAY_FILE=~/.osm/images-overlay.yaml
 PATH=/snap/bin:${PATH}