[SSI/Onboarding] Fix telemetry (#7817)

* Try to fix SSI telemetry by using `jvm` instead of `java` as language name

* Add missing 1st argument 'library_entrypoint'

Author: iamluc

dd-java-agent/src/main/java/datadog/trace/bootstrap/AgentBootstrap.java

@@ -97,8 +97,8 @@ private static BootstrapInitializationTelemetry createInitializationTelemetry()
 
     BootstrapInitializationTelemetry initTelemetry =
         BootstrapInitializationTelemetry.createFromForwarderPath(forwarderPath);
-    initTelemetry.initMetaInfo("runtime_name", "java");
-    initTelemetry.initMetaInfo("language_name", "java");
+    initTelemetry.initMetaInfo("runtime_name", "jvm");
+    initTelemetry.initMetaInfo("language_name", "jvm");
 
     String javaVersion = SystemUtils.tryGetProperty("java.version");
     if (javaVersion != null) {

dd-java-agent/src/main/java/datadog/trace/bootstrap/BootstrapInitializationTelemetry.java

@@ -202,7 +202,7 @@ public static final class ForwarderJsonSender implements JsonSender {
 
     @Override
     public void send(JsonBuffer buffer) throws IOException {
-      ProcessBuilder builder = new ProcessBuilder(forwarderPath);
+      ProcessBuilder builder = new ProcessBuilder(forwarderPath, "library_entrypoint");
 
       Process process = builder.start();
       try (OutputStream out = process.getOutputStream()) {