Updating suppression warning annotation and adding a description message

Author: LikeTheSalad

disk-buffering/src/main/java/io/opentelemetry/contrib/disk/buffering/internal/serialization/mapping/logs/models/LogRecordDataImpl.java

@@ -17,7 +17,6 @@
 import io.opentelemetry.sdk.resources.Resource;
 import javax.annotation.Nullable;
 
-@SuppressWarnings({"deprecation", "SuppressWarningsWithoutExplanation"})
 @AutoValue
 public abstract class LogRecordDataImpl implements ExtendedLogRecordData {
 
@@ -38,6 +37,9 @@ public ExtendedAttributes getExtendedAttributes() {
     return ExtendedAttributes.builder().putAll(getAttributes()).build();
   }
 
+  // It's only deprecated in the incubating interface for extended attributes, which are not yet
+  // supported in this module.
+  @SuppressWarnings("deprecation")
   @Override
   public abstract Attributes getAttributes();