fix: typo in elasticsearch image name

Author: s.kazemi

.env.test

@@ -45,7 +45,7 @@ KEYCLOAK__TIMEOUT=30
 
 # Elasticsearch Configuration (ElasticsearchConfig)
 ELASTIC__HOSTS=["http://localhost:9200"]
-ELASTIC__IMAGE==docker.elastic.co/elasticsearch/elasticsearch:9.1.0
+ELASTIC__IMAGE=docker.elastic.co/elasticsearch/elasticsearch:9.1.0
 ELASTIC__PORT=9200
 ELASTIC__HTTP_USER_NAME=elastic
 ELASTIC__HTTP_PASSWORD=test_password