Update elastic-apm-agent to support Java 24 (elastic#123052)

Updates elastic-apm-agent to 1.52.2 to support Java 24.

Author: alexey-ivanov-es

gradle/verification-metadata.xml

@@ -69,9 +69,9 @@
             <sha256 value="10fe288fd7a2cdaf5175332b73529f9abf8fd54dcfff317d6967c0c35ffb133b" origin="Generated by Gradle"/>
          </artifact>
       </component>
-      <component group="co.elastic.apm" name="elastic-apm-agent" version="1.52.0">
-         <artifact name="elastic-apm-agent-1.52.0.jar">
-            <sha256 value="ef6c8f75bd6181e717cdd172864441580708c7ee8543175621a3f404f4ba6429" origin="Generated by Gradle"/>
+      <component group="co.elastic.apm" name="elastic-apm-agent" version="1.52.2">
+         <artifact name="elastic-apm-agent-1.52.2.jar">
+            <sha256 value="dee18355a06f66a425bd597d6447ccbe7e8b7a3c0667adb7b30da173e31044e0" origin="Generated by Gradle"/>
          </artifact>
       </component>
       <component group="co.elastic.logging" name="ecs-logging-core" version="1.2.0">

modules/apm/build.gradle

@@ -20,7 +20,7 @@ dependencies {
   implementation "io.opentelemetry:opentelemetry-api:${otelVersion}"
   implementation "io.opentelemetry:opentelemetry-context:${otelVersion}"
   implementation "io.opentelemetry:opentelemetry-semconv:${otelSemconvVersion}"
-  runtimeOnly    "co.elastic.apm:elastic-apm-agent:1.52.0"
+  runtimeOnly    "co.elastic.apm:elastic-apm-agent:1.52.2"
 
   javaRestTestImplementation project(':modules:apm')
   javaRestTestImplementation project(':test:framework')

muted-tests.yml

@@ -296,9 +296,6 @@ tests:
 - class: org.elasticsearch.test.apmintegration.TracesApmIT
   method: testApmIntegration
   issue: https://github.com/elastic/elasticsearch/issues/122129
-- class: org.elasticsearch.test.apmintegration.MetricsApmIT
-  method: testApmIntegration
-  issue: https://github.com/elastic/elasticsearch/issues/123022
 - class: org.elasticsearch.repositories.gcs.GoogleCloudStorageServiceTests
   method: testClientsAreNotSharedAcrossRepositories
   issue: https://github.com/elastic/elasticsearch/issues/123090

test/external-modules/apm-integration/src/javaRestTest/java/org/elasticsearch/test/apmintegration/MetricsApmIT.java

@@ -127,7 +127,7 @@ public void testApmIntegration() throws Exception {
 
         var completed = finished.await(30, TimeUnit.SECONDS);
         var remainingAssertions = Stream.concat(valueAssertions.keySet().stream(), histogramAssertions.keySet().stream())
-            .collect(Collectors.joining());
+            .collect(Collectors.joining(","));
         assertTrue("Timeout when waiting for assertions to complete. Remaining assertions to match: " + remainingAssertions, completed);
     }