Add testcontainers-local.properties handling.

Original Pull Request #3062
Closes #3061

Signed-off-by: Peter-Josef Meisch <[email protected]>

Author: sothawo

Diff for: .gitignore

@@ -33,3 +33,4 @@ node
 package-lock.json
 
 .mvn/.develocity
+/src/test/resources/testcontainers-local.properties

Diff for: src/test/java/org/springframework/data/elasticsearch/junit/jupiter/ClusterConnection.java

@@ -129,6 +129,9 @@ private ClusterConnectionInfo startElasticsearchContainer() {
 			Map<String, String> testcontainersProperties = testcontainersProperties(
 					"testcontainers-" + testcontainersConfiguration + ".properties");
 
+			var testcontainersPropertiesLocal = testcontainersProperties("testcontainers-local.properties");
+			testcontainersProperties.putAll(testcontainersPropertiesLocal);
+
 			DockerImageName dockerImageName = getDockerImageName(testcontainersProperties);
 
 			ElasticsearchContainer elasticsearchContainer = new SpringDataElasticsearchContainer(dockerImageName)