chore(deps): update docker.elastic.co/kibana/kibana docker tag to v9.4.0

Author: renovate[bot]

aws-cloudwatch-project/docker/docker-compose-elk.yml

@@ -28,7 +28,7 @@ services:
       - elasticsearch
 
   kibana:
-    image: docker.elastic.co/kibana/kibana:9.3.4
+    image: docker.elastic.co/kibana/kibana:9.4.0
     container_name: kibana
     environment:
       - ELASTICSEARCH_HOSTS=http://elasticsearch:9200