Fix javadoc warnings (#620)

Signed-off-by: Valentin Delaye <jonesbusy@users.noreply.github.com>

Author: jonesbusy

src/main/java/land/oras/Descriptor.java

@@ -79,6 +79,7 @@ public sealed class Descriptor permits Config, Manifest, Layer, Index {
      * @param mediaType The media type
      * @param annotations The annotations
      * @param artifactType The artifact type
+     * @param registry The resolved registry
      * @param json The original JSON
      */
     protected Descriptor(

src/main/java/land/oras/OCI.java

@@ -164,6 +164,7 @@ protected List<Layer> collectLayers(T ref, String contentType, boolean includeAl
     /**
      * Push layers to the target
      * @param ref The ref
+     * @param annotations The annotations for layers (selected by title annotation).
      * @param withDigest Push with digest
      * @param paths The paths to the files
      * @return The layers