Using java-agent gradle plugin to phase off Security Manager in favor of Java-agent. (#798)

* Revert "Fix build due to phasing off SecurityManager usage in favor of Java Agent (#796)"

This reverts commit 702b719.

Signed-off-by: Pranav Reddy <pranavrd@amazon.com>

* Using java-agent gradle plugin to phase off Security Manager in favor of Java-agent.

Signed-off-by: Pranav Reddy <pranavrd@amazon.com>

---------

Signed-off-by: Pranav Reddy <pranavrd@amazon.com>

Author: pranu2502

build.gradle

@@ -93,30 +93,11 @@ ext {
 allprojects {
     group = "org.opensearch"
     version = opensearch_build
-
-    configurations {
-        agent
-    }
-
-    task prepareAgent(type: Copy) {
-        from(configurations.agent)
-        into "$buildDir/agent"
-    }
-
-    dependencies {
-        agent "org.opensearch:opensearch-agent-bootstrap:${opensearch_version}"
-        agent "org.opensearch:opensearch-agent:${opensearch_version}"
-        agent "net.bytebuddy:byte-buddy:1.17.5"
-    }
-
-    tasks.withType(Test) {
-        dependsOn prepareAgent
-        jvmArgs += ["-javaagent:" + project.layout.buildDirectory.file("agent/opensearch-agent-${opensearch_version}.jar").get()]
-    }
 }
 
 apply plugin: 'opensearch.opensearchplugin'
 apply plugin: 'opensearch.pluginzip'
+apply plugin: 'opensearch.java-agent'
 
 licenseFile = rootProject.file('LICENSE.txt')
 noticeFile = rootProject.file('NOTICE.txt')