Debug docker readiness tests (#108587)

qa/packaging/src/test/java/org/elasticsearch/packaging/test/DockerTests.java

@@ -1211,7 +1211,6 @@ public class DockerTests extends PackagingTestCase {
     /**
      * Check that readiness listener works
      */
-    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/108523")
     public void test500Readiness() throws Exception {
         assertFalse(readinessProbe(9399));
         // Disabling security so we wait for green
@@ -1220,6 +1219,7 @@ public class DockerTests extends PackagingTestCase {
             builder().envVar("readiness.port", "9399").envVar("xpack.security.enabled", "false").envVar("discovery.type", "single-node")
         );
         waitForElasticsearch(installation);
+        dumpDebug();
         assertTrue(readinessProbe(9399));
     }