implement missing isIndyReady

Author: SylvainJuge

instrumentation/mongo/mongo-4.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/mongo/v4_0/MongoClientInstrumentationModule.java

@@ -11,11 +11,13 @@
 import com.google.auto.service.AutoService;
 import io.opentelemetry.javaagent.extension.instrumentation.InstrumentationModule;
 import io.opentelemetry.javaagent.extension.instrumentation.TypeInstrumentation;
+import io.opentelemetry.javaagent.extension.instrumentation.internal.ExperimentalInstrumentationModule;
 import java.util.List;
 import net.bytebuddy.matcher.ElementMatcher;
 
 @AutoService(InstrumentationModule.class)
-public class MongoClientInstrumentationModule extends InstrumentationModule {
+public class MongoClientInstrumentationModule extends InstrumentationModule
+    implements ExperimentalInstrumentationModule {
 
   public MongoClientInstrumentationModule() {
     super("mongo", "mongo-4.0");
@@ -36,4 +38,9 @@ public List<TypeInstrumentation> typeInstrumentations() {
         new DefaultConnectionPoolTaskInstrumentation(),
         new AsyncWorkManagerInstrumentation());
   }
+
+  @Override
+  public boolean isIndyReady() {
+    return true;
+  }
 }