elastic-system: Upgrade to 8.4.1

elastic-system/application.yml

@@ -4,7 +4,7 @@ metadata:
   name: filebeat
 spec:
   type: filebeat
-  version: 8.3.1
+  version: 8.4.1
   elasticsearchRef:
     name: elasticsearch
   kibanaRef:
@@ -137,7 +137,7 @@ kind: Elasticsearch
 metadata:
   name: elasticsearch
 spec:
-  version: 8.3.1
+  version: 8.4.1
   nodeSets:
   - name: default
     count: 3
@@ -163,7 +163,7 @@ kind: Kibana
 metadata:
   name: kibana
 spec:
-  version: 8.3.1
+  version: 8.4.1
   count: 2
   elasticsearchRef:
     name: elasticsearch