Upgrade to Elasticsearch 8.18.8.

Original Pull Request #3183
Closes #3181
Signed-off-by: Peter-Josef Meisch <pj.meisch@sothawo.com>

Author: sothawo

pom.xml

@@ -21,7 +21,7 @@
 		<springdata.commons>3.5.5-SNAPSHOT</springdata.commons>
 
 		<!-- version of the ElasticsearchClient	-->
-		<elasticsearch-java>8.18.6</elasticsearch-java>
+		<elasticsearch-java>8.18.8</elasticsearch-java>
 
 		<hoverfly>0.19.0</hoverfly>
 		<log4j>2.23.1</log4j>

src/main/antora/modules/ROOT/pages/elasticsearch/versions.adoc

@@ -6,7 +6,7 @@ The following table shows the Elasticsearch and Spring versions that are used by
 [cols="^,^,^,^",options="header"]
 |===
 | Spring Data Release Train | Spring Data Elasticsearch | Elasticsearch | Spring Framework
-| 2025.0 | 5.5.x | 8.18.6 | 6.2.x
+| 2025.0 | 5.5.x | 8.18.8 | 6.2.x
 | 2024.1 | 5.4.x | 8.15.5 | 6.1.x
 | 2024.0 | 5.3.xfootnote:oom[Out of maintenance] | 8.13.4 | 6.1.x
 | 2023.1 (Vaughan) | 5.2.xfootnote:oom[] | 8.11.1 | 6.1.x

src/test/resources/testcontainers-elasticsearch.properties

@@ -15,7 +15,7 @@
 #
 #
 sde.testcontainers.image-name=docker.elastic.co/elasticsearch/elasticsearch
-sde.testcontainers.image-version=8.18.6
+sde.testcontainers.image-version=8.18.8
 #
 #
 # needed as we do a DELETE /* at the end of the tests, will be required from 8.0 on, produces a warning since 7.13