Update K8s Monitoring to support Grafana 8

Change-Id: Ia109036c8cd54cfbc6af27ff2db094abf83ce9bd
Signed-off-by: limon <alimonj@indra.es>
(cherry picked from commit 00d428d1e9803b74c3044c1d5c627b04dc9de358)
7 files changed