fix(ethereum): nimbus port assignment (#1305)

Author: cjorge-graphops

ethereum/values/_common/nimbus.yaml.gotmpl

@@ -121,7 +121,7 @@ nimbus:
 {{- if (hasKey .Values.scaling "p2pStartPort") }}
   p2pNodePort:
     enabled: true
-    port: {{ add (mul (sub $scalingIndex 1) 2) .Values.scaling.p2pStartPort 1 }}
+    port: {{ add (mul (sub $scalingIndex 1) 3) .Values.scaling.p2pStartPort 1 }}
 {{- end }}
 
 prometheus: