[VOL-4730] Upgrading etcd and kafka charts to available versions

Change-Id: I2ce4ac98cf52d5dbd85d06c745ff8f0f3ea98e30
diff --git a/VERSION b/VERSION
index 7ee4924..683d82a 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.8.25
+2.8.26