[COMMON][READINESS] Update readiness image and use service feature

[COMMON][READINESS] Update readiness image and use service feature

Update the ReadinessCheck (13.1.0) to support the "services" feature
of readiness image version 6.0.2 and use the feature in the charts
under common (dgbuilder, etcd-init, mariadb-galera, mariadb-init,
postgres-init)
Additional exclude K8S API port (443) from Istio Sidecar communication
to allow CNI Plugin

Issue-ID: OOM-3280

Change-Id: Ibe030aa9debfc82e88f2ce5e309dd6fa2250f211
Signed-off-by: Andreas Geissler <andreas-geissler@telekom.de>