[stable/consul] Fix ignoring gossip-key passed via values (#8784)

Signed-off-by: Krishnaswamy Subramanian <jskswamy@gmail.com>

stable/consul/Chart.yaml

@@ -1,6 +1,6 @@
 name: consul
 home: https://github.com/hashicorp/consul
-version: 3.4.0
+version: 3.4.1
 appVersion: 1.0.0
 description: Highly available and distributed service discovery and key-value store
   designed with support for the modern data center to make distributed systems and

stable/consul/templates/gossip-secret.yaml

@@ -10,5 +10,9 @@ metadata:
     component: "{{ .Release.Name }}-{{ .Values.Component }}"
 type: Opaque
 data:
+  {{ if .Values.GossipKey }}
+  gossip-key: {{ .Values.GossipKey | b64enc }}
+  {{ else }}
   gossip-key: {{ randAlphaNum 24 | b64enc }}
+  {{ end }}
 {{ end }}