Add environment variable for embedded ES container

* Add same environment variables for the embedded elastic search container as in docker-compose.
* Limit the memory (Xms/Xmx) to 128m because since ES 7.11.0, heap settings are based on node roles and total system memory #65905.

src/test/java/com/powsybl/network/conversion/server/elasticsearch/EmbeddedElasticsearch.java

@@ -12,6 +12,8 @@
 import jakarta.annotation.PostConstruct;
 import jakarta.annotation.PreDestroy;
 
+import java.util.Map;
+
 /**
  * A class to launch an embedded DB elasticsearch
  *
@@ -32,8 +34,13 @@ public void postConstruct() {
         }
 
         elasticsearchContainer = new ElasticsearchContainer(String.format("%s:%s", ES_DOCKER_IMAGE_NAME, ES_DOCKER_IMAGE_VERSION));
+        Map<String, String> envMap = elasticsearchContainer.getEnvMap();
+        envMap.put("discovery.type", "single-node");
+        envMap.put("LOGSPOUT", "ignore");
         //Els 8 has security enabled by default
-        elasticsearchContainer.getEnvMap().put("xpack.security.enabled", Boolean.FALSE.toString());
+        envMap.put("xpack.security.enabled", Boolean.FALSE.toString());
+        envMap.put("ingest.geoip.downloader.enabled", Boolean.FALSE.toString());
+        envMap.put("ES_JAVA_OPTS", "-Xms128m -Xmx128m");
         elasticsearchContainer.start();
 
         System.setProperty("spring.data.elasticsearch.embedded", Boolean.toString(true));