[AAF][CASSANDRA] Lower disk claim

Currently, AAF Cassandra is claiming 20Gi of disk.
After boot, use is around 140Mi and after 3 monthes, it's 3.8Gi.
5Gi seems a better value.

Issue-ID: OOM-1
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: Ia4f92709824a441a8d2d23c42d0b0b31f0dae778
diff --git a/kubernetes/aaf/components/aaf-cass/values.yaml b/kubernetes/aaf/components/aaf-cass/values.yaml
index 5256744..a1a1abe 100644
--- a/kubernetes/aaf/components/aaf-cass/values.yaml
+++ b/kubernetes/aaf/components/aaf-cass/values.yaml
@@ -93,4 +93,4 @@
   mountSubPath: "cass"
   volumeReclaimPolicy: Retain
   accessMode: ReadWriteOnce
-  size: 20Gi
+  size: 5Gi