[COMMON][DOC] Bump version Guilin

Update charts and requirements to 7.0.0.
Create release notes for Guilin
Update documentation

Issue-ID: OOM-2638
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: I965ed6b6ebb7d74bfddaff73edd3dd55a657841c
diff --git a/kubernetes/portal/components/portal-cassandra/Chart.yaml b/kubernetes/portal/components/portal-cassandra/Chart.yaml
index 48d4199..f2f2577 100644
--- a/kubernetes/portal/components/portal-cassandra/Chart.yaml
+++ b/kubernetes/portal/components/portal-cassandra/Chart.yaml
@@ -16,4 +16,4 @@
 apiVersion: v1
 description: Portal cassandra
 name: portal-cassandra
-version: 6.0.0
+version: 7.0.0