fix(deps): resolve Elasticsearch client compatibility issue

- Replace deprecated elasticsearch-rest-high-level-client with elasticsearch-rest-client v8.17.2
- Fix NoSuchMethodError by using compatible versions of elasticsearch-java and rest-client
- Remove unused imports from ElasticsearchControllerSpec

Author: j5ik2o

build.sbt

@@ -234,13 +234,13 @@ val `docker-controller-scala-elasticsearch` = (project in file("docker-controlle
   .settings(
     name := "docker-controller-scala-elasticsearch",
     libraryDependencies ++= Seq(
-      scalatest.scalatest               % Test,
-      logback.classic                   % Test,
-      elasticsearch.restHighLevelClient % Test,
-      "co.elastic.clients"              % "elasticsearch-java" % "9.1.4"  % Test,
-      "com.fasterxml.jackson.core"      % "jackson-databind"   % "2.20.0" % Test,
-      "org.apache.logging.log4j"        % "log4j-api"          % "2.25.1" % Test,
-      "org.apache.logging.log4j"        % "log4j-core"         % "2.25.1" % Test
+      scalatest.scalatest           % Test,
+      logback.classic               % Test,
+      "co.elastic.clients"          % "elasticsearch-java" % "9.1.4"  % Test,
+      "org.elasticsearch.client"    % "elasticsearch-rest-client" % "8.17.2" % Test,
+      "com.fasterxml.jackson.core"  % "jackson-databind"   % "2.20.0" % Test,
+      "org.apache.logging.log4j"    % "log4j-api"          % "2.25.1" % Test,
+      "org.apache.logging.log4j"    % "log4j-core"         % "2.25.1" % Test
     )
   ).dependsOn(`docker-controller-scala-core`, `docker-controller-scala-scalatest` % Test)
 

docker-controller-scala-elasticsearch/src/test/scala/com/github/j5ik2o/dockerController/elasticsearch/ElasticsearchControllerSpec.scala

@@ -4,17 +4,9 @@ import co.elastic.clients.elasticsearch.ElasticsearchClient
 import co.elastic.clients.json.jackson.JacksonJsonpMapper
 import co.elastic.clients.transport.rest_client.RestClientTransport
 import com.github.j5ik2o.dockerController.{ DockerController, DockerControllerSpecSupport, WaitPredicates }
-import org.elasticsearch.client.{
-  RequestOptions,
-  RestClient,
-  RestClientBuilder,
-  RestHighLevelClient,
-  RestHighLevelClientBuilder
-}
+import org.elasticsearch.client.RestClient
 import org.scalatest.freespec.AnyFreeSpec
 import org.apache.http.HttpHost
-import org.apache.http.client.methods.RequestBuilder.options
-import org.elasticsearch.client.core.MainRequest
 
 import scala.concurrent.duration.{ Duration, DurationInt }
 import scala.util.control.NonFatal