VOL-4077: Improve storage usage
- Use etcd chart 6.2.5 autoCompactionMode=revision and
  autocompactionRetention=1
- Allow configurability of ETCD_ELECTION_TIMEOUT and
  ETCD_HEARTBEAT_INTERVAL for etcd (defaults to 5000 and 1000
  respectively).
- Also create a cron job to defragement etcd DB every 5 mins

Change-Id: I32db16ab64f9ea30d69875a34016ff0479913f70
diff --git a/voltha-infra/Chart.yaml b/voltha-infra/Chart.yaml
index ee8896b..337022f 100644
--- a/voltha-infra/Chart.yaml
+++ b/voltha-infra/Chart.yaml
@@ -29,7 +29,7 @@
 name: voltha-infra
 
 appVersion: "2.8-dev"
-version: 0.2.6
+version: 0.2.7
 
 dependencies:
   - name: onos-classic
@@ -42,7 +42,7 @@
     condition: bbsim-sadis-server.enabled
   - name: etcd
     repository: https://charts.bitnami.com/bitnami
-    version: 5.4.2
+    version: 6.2.5
     condition: etcd.enabled
   - name: kafka
     repository: https://charts.bitnami.com/bitnami