AETHER-2796 make application.endpoint.port-start not mandatory

Change-Id: I5a4a86850cf06c2f1affe153d0f7faf3261f01f5
diff --git a/config-models/aether-4.x/Chart.yaml b/config-models/aether-4.x/Chart.yaml
index 42da325..a9c80ca 100644
--- a/config-models/aether-4.x/Chart.yaml
+++ b/config-models/aether-4.x/Chart.yaml
@@ -4,7 +4,7 @@
 
 apiVersion: v2
 name: config-model-aether-4
-version: 4.0.16
+version: 4.0.17
 kubeVersion: ">=1.18.0"
 appVersion: 4.0.0
 description: Aether config model